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Commit Graph

898 Commits

Author SHA1 Message Date
Tyler Yahn
cdd2dbb474
Drop support for Go 1.21 in dice example (#5800)
Resolves #5359
2024-09-10 11:04:33 -07:00
David Ashpole
71b341f0a0
Add utf8 support to the prometheus exporter (#5755)
### Changes

Disable sanitization when the UTF-8 support is enabled in the Prometheus
library.

### Usage

To enable UTF-8 support for the Prometheus exporter after this change,
set the following in your application:

```golang
import "github.com/prometheus/common/model"

func init() {
    model.NameValidationScheme = model.UTF8Validation
}
```

See `exporters/prometheus/testdata/counter_utf8.txt` for an example of
the text exposition format including names/labels with dots.
2024-09-09 11:08:14 -04:00
Nathan Baulch
506a9baf5e
Fix typos (#5763) 2024-09-09 08:53:15 +02:00
Sam Xie
b37e8a9860
SetMeterProvider might miss the delegation for instruments and registries (#5780)
Closes #5757

This PR fixes an issue where `SetMeterProvider` might miss the
delegation for instruments and registries. This bug brings a concurrent
issue that could possibly make instruments and registries unable to
operate correctly, such as recording, after using the `SetMeterProvider`
method. The data put on these instruments and registries might be lost.
2024-09-06 16:42:55 -07:00
Bastian Krol
9e1b015159
fix(metric, log): merge explicit resource with environment variables (#5773)
fixes #5764

---------

Co-authored-by: Damien Mathieu <42@dmathieu.com>
2024-09-06 19:19:44 +02:00
Anton Manakin
8dca9cc0fa
Support OTEL_EXPORTER_OTLP_LOGS_INSECURE and OTEL_EXPORTER_OTLP_INSECURE environments in grpc exporter (#5739)
Closes https://github.com/open-telemetry/opentelemetry-go/issues/5719

In this commit I add OTEL_EXPORTER_OTLP_LOGS_INSECURE and
OTEL_EXPORTER_OTLP_INSECURE env options to `otlploggrpc.Exporter`.

Now insecure option is fetched from env endpoint value
(OTEL_EXPORTER_OTLP_LOGS_ENDPOINT/OTEL_EXPORTER_OTLP_ENDPOINT).
According to
[spec](https://opentelemetry.io/docs/specs/otel/protocol/exporter/):
> Insecure: Whether to enable client transport security for the
exporter’s gRPC connection. This option only applies to OTLP/gRPC when
an endpoint is provided without the http or https scheme - OTLP/HTTP
always uses the scheme provided for the endpoint.

So with current behavior we have several problems:
- If default endpoint is used, we can't use insecure connection (with
setting OTEL_EXPORTER_OTLP_INSECURE).
- If endpoint provided with option without scheme (e.g. `WithEndpoint`)
we can't use insecure connection with env settings.
- If endpoint provided with env variable without scheme (e.g.
`//env.endpoint:8080/`) we can't use insecure connection.

This commit fixes this.

The same problem with `otlploghttp.Exporter`, and probably it should be
fixed there too.
I'm open to suggestions on how to fix the current behavior in a more
elegant way.

---------

Co-authored-by: Sam Xie <sam@samxie.me>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
2024-09-06 15:48:45 +02:00
Sam Xie
932a4d8a5f
Fix panic instruments creation when setting meter provider (#5758)
Related #5757. This is a quick fix.
2024-09-01 11:02:31 -07:00
David Ashpole
e47618fc36
Fix duplicate instrumentation memory leak (#5754)
Fixes https://github.com/open-telemetry/opentelemetry-go/issues/5753

The added test fails on main, but passes after the fix.

---------

Co-authored-by: Sam Xie <sam@samxie.me>
2024-08-29 10:30:20 -07:00
Sam Xie
172cfb7208
Replace go 1.21 with go 1.22 in go mod (#5740)
Related #5736
2024-08-26 18:50:33 -07:00
Tyler Yahn
023025f17d
Drop support for Go 1.21 (#5736)
Co-authored-by: Sam Xie <sam@samxie.me>
Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
2024-08-25 07:22:05 -07:00
Tyler Yahn
6b1d94f21c
Release v1.29.0/v0.51.0/v0.5.0 (#5732)
This release is the last to support [Go 1.21]. The next release will
require at least [Go 1.22].

### Added

- Add MacOS ARM64 platform to the compatibility testing suite. (#5577)
- Add `InstrumentationScope` field to `SpanStub` in
`go.opentelemetry.io/otel/sdk/trace/tracetest`, as a replacement for the
deprecated `InstrumentationLibrary`. (#5627)
- Make the initial release of
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc`. This new
module contains an OTLP exporter that transmits log telemetry using
gRPC. This module is unstable and breaking changes may be introduced.
See our [versioning policy](VERSIONING.md) for more information about
these stability guarantees. (#5629)
- Add `Walk` function to `TraceState` in
`go.opentelemetry.io/otel/trace` to iterate all the key-value pairs.
(#5651)
- Bridge the trace state in
`go.opentelemetry.io/otel/bridge/opencensus`. (#5651)
- Zero value of `SimpleProcessor` in `go.opentelemetry.io/otel/sdk/log`
no longer panics. (#5665)
- The `FilterProcessor` interface type is added in
`go.opentelemetry.io/otel/sdk/log/internal/x`. This is an optional and
experimental interface that log `Processor`s can implement to instruct
the `Logger` if a `Record` will be processed or not. It replaces the
existing `Enabled` method that is removed from the `Processor` interface
itself. It does not fall within the scope of the OpenTelemetry Go
versioning and stability [policy](./VERSIONING.md) and it may be changed
in backwards incompatible ways or removed in feature releases. (#5692)
- Support [Go 1.23]. (#5720)

### Changed

- `NewMemberRaw`, `NewKeyProperty` and `NewKeyValuePropertyRaw` in
`go.opentelemetry.io/otel/baggage` allow UTF-8 string in key. (#5132)
- `Processor.OnEmit` in `go.opentelemetry.io/otel/sdk/log` now accepts a
pointer to `Record` instead of a value so that the record modifications
done in a processor are propagated to subsequent registered processors.
(#5636)
- `SimpleProcessor.Enabled` in `go.opentelemetry.io/otel/sdk/log` now
returns `false` if the exporter is `nil`. (#5665)
- Update the concurrency requirements of `Exporter` in
`go.opentelemetry.io/otel/sdk/log`. (#5666)
- `SimpleProcessor` in `go.opentelemetry.io/otel/sdk/log` synchronizes
`OnEmit` calls. (#5666)
- The `Processor` interface in `go.opentelemetry.io/otel/sdk/log` no
longer includes the `Enabled` method. See the `FilterProcessor`
interface type added in `go.opentelemetry.io/otel/sdk/log/internal/x` to
continue providing this functionality. (#5692)
- The `SimpleProcessor` type in `go.opentelemetry.io/otel/sdk/log` is no
longer comparable. (#5693)
- The `BatchProcessor` type in `go.opentelemetry.io/otel/sdk/log` is no
longer comparable. (#5693)

### Fixed

- Correct comments for the priority of the `WithEndpoint` and
`WithEndpointURL` options and their corresponding environment variables
in `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp`.
(#5584)
- Pass the underlying error rather than a generic retry-able failure in
`go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp`,
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp` and
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp`.
(#5541)
- Correct the `Tracer`, `Meter`, and `Logger` names used in
`go.opentelemetry.io/otel/example/dice`. (#5612)
- Correct the `Tracer` names used in
`go.opentelemetry.io/otel/example/namedtracer`. (#5612)
- Correct the `Tracer` name used in
`go.opentelemetry.io/otel/example/opencensus`. (#5612)
- Correct the `Tracer` and `Meter` names used in
`go.opentelemetry.io/otel/example/otel-collector`. (#5612)
- Correct the `Tracer` names used in
`go.opentelemetry.io/otel/example/passthrough`. (#5612)
- Correct the `Meter` name used in
`go.opentelemetry.io/otel/example/prometheus`. (#5612)
- Correct the `Tracer` names used in
`go.opentelemetry.io/otel/example/zipkin`. (#5612)
- Correct comments for the priority of the `WithEndpoint` and
`WithEndpointURL` options and their corresponding environment variables
in `go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc`
and `go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp`.
(#5641)
- Correct comments for the priority of the `WithEndpoint` and
`WithEndpointURL` options and their corresponding environment variables
in `go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp`.
(#5650)
- Stop percent encoding header environment variables in
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc`,
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp`,
`go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc` and
`go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp`
(#5705)
- Remove invalid environment variable header keys in
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc`,
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp`,
`go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc` and
`go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp`
(#5705)

### Removed

- The `Enabled` method of the `SimpleProcessor` in
`go.opentelemetry.io/otel/sdk/log` is removed. (#5692)
- The `Enabled` method of the `BatchProcessor` in
`go.opentelemetry.io/otel/sdk/log` is removed. (#5692)

[Go 1.23]: https://go.dev/doc/go1.23
[Go 1.22]: https://go.dev/doc/go1.22
[Go 1.21]: https://go.dev/doc/go1.21
2024-08-23 13:13:40 -07:00
Tyler Yahn
002c0a4c03
Move log.Processor.Enabled to independent FilterProcessor interfaced type (#5692)
Closes #5425 

Our current log `Processor` interface contains more functionality than
the [OTel
spec](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/logs/sdk.md#logrecordprocessor-operations).
The additional functionality allows processors to report back to the API
if a Record should be constructed and emitted or not, which is quite
helpful[^1][^2][^3][^4][^5].

This removes the `Enabled` method from the `Processor` type. It adds
this functionality a new optional and experimental `FilterProcessor`
interface type. The logger and provider are updated to check for this
optional interface to be implemented with the configured processors and
uses them to back the `Logger.Enabled` method, preserving existing
functionality.

By making this change:

- The `Processor` interface is now compliant with the OTel spec and does
not contain any additional unspecified behavior.
- All `Processor` implementations are no longer required to implement an
`Enabled` method. The default, when they do not implement this method,
is to assume they are enabled.

### Benchmark

```terminal
goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/log
cpu: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
                │   old.txt    │              new7.txt               │
                │    sec/op    │   sec/op     vs base                │
LoggerEnabled-8   133.30n ± 3%   32.36n ± 3%  -75.72% (p=0.000 n=10)

                │  old.txt   │            new7.txt            │
                │    B/op    │    B/op     vs base            │
LoggerEnabled-8   0.000 ± 0%   0.000 ± 0%  ~ (p=1.000 n=10) ¹
¹ all samples are equal

                │  old.txt   │            new7.txt            │
                │ allocs/op  │ allocs/op   vs base            │
LoggerEnabled-8   0.000 ± 0%   0.000 ± 0%  ~ (p=1.000 n=10) ¹
¹ all samples are equal
```

This is a significant performance improvement due to the `Record` no
longer being converted from the API version to the SDK version.

[^1]: https://pkg.go.dev/go.opentelemetry.io/contrib/processors/minsev
[^2]:
https://pkg.go.dev/go.opentelemetry.io/otel/sdk/log#BatchProcessor.Enabled
[^3]:
https://pkg.go.dev/go.opentelemetry.io/otel/sdk/log#SimpleProcessor.Enabled
[^4]:
af75717ac4/bridges/otelslog/handler.go (L206-L211)
[^5]:
d0309ddd8c/bridges/otelzap/core.go (L142-L146)

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Sam Xie <sam@samxie.me>
2024-08-22 09:12:23 -07:00
jianwu
fe6c67e7e9
OpenCensus bridge to support TraceState (#5651)
# Summary 
This is to fix issue: #5642 
The original logic skips copying TraceState when convert Spans between
OTel and OC.

This PR also updated the OTel TraceState to expose the Keys function for
the propagation purpose.

---------

Co-authored-by: Sam Xie <sam@samxie.me>
2024-08-21 17:33:56 +02:00
Zhihan Li
83ae9bd0e3
Bugfix: OTLP exporters should not percent decode the key when parsing HEADERS env vars (#5705)
Bugfix #5623

As stated in the issue, we need to avoid parsing the key and instead
implement a validation check for it. I've added some unit tests to
verify this fix.

However, I noticed a comment at the top of this file:
```
// Code created by gotmpl. DO NOT MODIFY.
// source: internal/shared/otlp/envconfig/envconfig.go.tmpl
```
It seems that `internal/shared/otlp/envconfig/envconfig.go.tmpl` is the
source template for this file. Since this template matches
`exporters/otlp/otlptrace/otlptracegrpc/internal/envconfig/envconfig.go`,
I updated the template to maintain consistency. I’m not entirely sure if
this approach is correct, so please confirm if this is the right course
of action.

---------

Co-authored-by: Fools <54661071+Charlie-lizhihan@users.noreply.github.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-08-21 07:53:24 -07:00
Damien Mathieu
083d03e605
Add support for go 1.23 (#5720)
Go 1.23 was released a few days ago.
https://go.dev/blog/go1.23

This also upgrades golangci-lint (and fixes new issues), since it
appears 1.59 doesn't work nicely with Go 1.23.

---------

Co-authored-by: Sam Xie <sam@samxie.me>
2024-08-21 09:37:56 +02:00
Sam Xie
d61bbf18f5
baggage: Accept non-ASCII keys (#5132)
resolves #4946

I also add additional test cases to cover more lines.

benchmark results:

```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/baggage
                                 │   old.txt   │               new.txt               │
                                 │   sec/op    │   sec/op     vs base                │
New-10                             402.3n ± 1%   422.4n ± 6%   +4.98% (p=0.000 n=10)
NewMemberRaw-10                    10.82n ± 0%   13.90n ± 1%  +28.51% (p=0.000 n=10)
Parse-10                           803.8n ± 1%   795.0n ± 1%   -1.09% (p=0.011 n=10)
String-10                          682.6n ± 0%   610.0n ± 2%  -10.63% (p=0.000 n=10)
ValueEscape/nothing_to_escape-10   4.856n ± 0%   4.849n ± 0%        ~ (p=0.279 n=10)
ValueEscape/requires_escaping-10   22.47n ± 1%   22.36n ± 1%        ~ (p=0.342 n=10)
ValueEscape/long_value-10          513.3n ± 1%   510.1n ± 0%   -0.62% (p=0.006 n=10)
MemberString-10                    430.8n ± 2%   471.3n ± 2%   +9.41% (p=0.000 n=10)
geomean                            124.5n        128.5n        +3.22%

                                 │   old.txt    │               new.txt                │
                                 │     B/op     │    B/op     vs base                  │
New-10                             704.0 ± 0%     704.0 ± 0%        ~ (p=1.000 n=10) ¹
NewMemberRaw-10                    0.000 ± 0%     0.000 ± 0%        ~ (p=1.000 n=10) ¹
Parse-10                           888.0 ± 0%     888.0 ± 0%        ~ (p=1.000 n=10) ¹
String-10                          936.0 ± 0%     840.0 ± 0%  -10.26% (p=0.000 n=10)
ValueEscape/nothing_to_escape-10   0.000 ± 0%     0.000 ± 0%        ~ (p=1.000 n=10) ¹
ValueEscape/requires_escaping-10   16.00 ± 0%     16.00 ± 0%        ~ (p=1.000 n=10) ¹
ValueEscape/long_value-10          576.0 ± 0%     576.0 ± 0%        ~ (p=1.000 n=10) ¹
MemberString-10                    656.0 ± 0%     656.0 ± 0%        ~ (p=1.000 n=10) ¹
geomean                                       ²                -1.34%                ²
¹ all samples are equal
² summaries must be >0 to compute geomean

                                 │    old.txt    │               new.txt                │
                                 │   allocs/op   │ allocs/op   vs base                  │
New-10                              8.000 ± 0%     8.000 ± 0%        ~ (p=1.000 n=10) ¹
NewMemberRaw-10                     0.000 ± 0%     0.000 ± 0%        ~ (p=1.000 n=10) ¹
Parse-10                            9.000 ± 0%     9.000 ± 0%        ~ (p=1.000 n=10) ¹
String-10                          10.000 ± 0%     8.000 ± 0%  -20.00% (p=0.000 n=10)
ValueEscape/nothing_to_escape-10    0.000 ± 0%     0.000 ± 0%        ~ (p=1.000 n=10) ¹
ValueEscape/requires_escaping-10    1.000 ± 0%     1.000 ± 0%        ~ (p=1.000 n=10) ¹
ValueEscape/long_value-10           2.000 ± 0%     2.000 ± 0%        ~ (p=1.000 n=10) ¹
MemberString-10                     4.000 ± 0%     4.000 ± 0%        ~ (p=1.000 n=10) ¹
geomean                                        ²                -2.75%                ²
¹ all samples are equal
² summaries must be >0 to compute geomean
```

FYI, the old implementation of `NewMemberRaw` didn't verify the value,
so the benchmark result of `NewMemberRaw` is not an apple-to-apple
comparison of `utf8.ValidString` and `validateKey`.

---------

Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
Co-authored-by: Robert Pająk <pellared@hotmail.com>
2024-08-15 16:50:34 -07:00
Tyler Yahn
c4ebcaa08d
Ensure exported struct in sdk/log are not comparable (#5693)
Ensure the `Record` and `Provider` continue to be non-comparable.

Restrict `BatchProcessor` and `SimpleProcessor` to be non-comparable.

There is no obvious reason an end-user will need to compare these types,
and we want to keep the possibility of changing the internals without
changing this behavior.

if comparability is required by end-users in the future we can add
`Equal(other T)` methods in the future.
2024-08-09 07:31:42 -07:00
Robert Pająk
69e235829e
sdk/log: SimpleProcessor synchronizes OnEmit calls (#5666)
From
https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/logs/sdk.md#export:

> `Export` will never be called concurrently for the same exporter
instance.

From our SDK perspective this change will make
https://pkg.go.dev/go.opentelemetry.io/otel/exporters/stdout/stdoutlog
concurrent-safe when used with the simple processor. Before the change,
there can be multiple goroutines calling `Write` in parallel (via
`json.Encoder.Encode`).

### Remarks

[Maybe we should simply state that "whole" exporter implementation does
not need to be
concurrent-safe?](https://github.com/open-telemetry/opentelemetry-specification/pull/4173#discussion_r1699958752)
However:
1. we would need to make complex changes in `BatchExporter` to
synchronize the `Export`, `Shutdown`, `ForceFlush` calls
2. we would need to update all exporters (remove synchronization) and
simple exporter (add locks to `Shutdown`, `ForceFlush`)
3. I am 100% not sure if this would be compliant with the specification
- I think it would be complaint because we would simply give stronger
safety-measures


We should probably discuss it separately, but I wanted to highlight my
though process.
Even if we decide that simple and batch processors to synchronize all
calls then I would prefer to address it in a separate PR.

Related spec clarification PR:
-
https://github.com/open-telemetry/opentelemetry-specification/pull/4173
2024-08-09 08:40:39 +02:00
Robert Pająk
f079b03364
sdk/log: SimpleProcessor to not panic for zero value (#5665) 2024-08-04 12:35:58 +02:00
Sam Xie
9e5b316e3c
Correct the comment for the priority of options and environments on otlploghttp (#5650)
Part of https://github.com/open-telemetry/opentelemetry-go/issues/5379
2024-08-01 13:33:16 -07:00
Robert Pająk
8e8ad092cc
sdk/log: Processor.OnEmit accetps a Record pointer (#5636)
## What

Change `Processor.OnEmit` methods to accept a record pointer.

## Why

Fixes https://github.com/open-telemetry/opentelemetry-go/issues/5219

This would be specification compliant according to discussions around
https://github.com/open-telemetry/opentelemetry-specification/pull/4067

This is inline of how processors Go span processors works and how log
processors work in other languages.

If the performance (an additional heap allocation during log processing)
would occur to be a significant problem for some users, we have at few
possible solutions:

1. Utilize PGO which may also lead to decreasing heap allocations
(sources:
https://landontclipp.github.io/blog/2023/08/25/profile-guided-optimizations-in-go/#devirtualization,
https://andrewwphillips.github.io/blog/pgo.html). Currently it does not
but I expect it may change in future.
2. Improve the Go compilers escape analysis (related to previous point)
3. introduce new "chaining processor" which can be also desirable in
other languages

## Benchstat

`old` is from `main`.
`new` is from current branch.

`new-pgo` is from current branch with PGO optimization. I first run
benchmarks to generate a CPU profile using `go test -run=^$ -bench=.
-count=10 -cpuprofile default.pgo` and then I rerun the tests with PGO.
Currently, the number of heap allocations is the same.

```
goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/log
cpu: Intel(R) Core(TM) i9-10885H CPU @ 2.40GHz
                                  │    old.txt    │                new.txt                │              new-pgo.txt              │
                                  │    sec/op     │    sec/op     vs base                 │    sec/op     vs base                 │
BatchProcessorOnEmit-16              402.7n ± 18%   382.0n ±  7%         ~ (p=0.247 n=10)   376.7n ± 14%         ~ (p=0.210 n=10)
Processor/Simple-16                  350.9n ±  9%   782.5n ±  6%  +123.00% (p=0.000 n=10)   755.1n ±  5%  +115.19% (p=0.000 n=10)
Processor/Batch-16                   1.333µ ± 15%   1.497µ ± 11%   +12.27% (p=0.000 n=10)   1.528µ ±  8%   +14.63% (p=0.000 n=10)
Processor/SetTimestampSimple-16      329.5n ± 15%   711.6n ±  4%  +115.93% (p=0.000 n=10)   721.9n ±  5%  +119.04% (p=0.000 n=10)
Processor/SetTimestampBatch-16       1.163µ ±  2%   1.524µ ±  3%   +31.03% (p=0.000 n=10)   1.461µ ±  5%   +25.57% (p=0.000 n=10)
Processor/AddAttributesSimple-16     408.7n ±  3%   810.1n ±  4%   +98.21% (p=0.000 n=10)   830.1n ±  4%  +103.11% (p=0.000 n=10)
Processor/AddAttributesBatch-16      1.270µ ±  2%   1.623µ ±  4%   +27.71% (p=0.000 n=10)   1.597µ ±  7%   +25.66% (p=0.000 n=10)
Processor/SetAttributesSimple-16     436.2n ± 10%   796.1n ±  3%   +82.50% (p=0.000 n=10)   817.6n ±  4%   +87.43% (p=0.000 n=10)
Processor/SetAttributesBatch-16      1.202µ ±  2%   1.552µ ±  2%   +29.06% (p=0.000 n=10)   1.659µ ± 11%   +37.96% (p=0.000 n=10)
LoggerNewRecord/5_attributes-16      366.6n ±  3%   363.7n ±  7%         ~ (p=0.952 n=10)   426.2n ±  7%   +16.27% (p=0.000 n=10)
LoggerNewRecord/10_attributes-16     1.711µ ±  2%   1.909µ ± 18%   +11.57% (p=0.000 n=10)   2.077µ ± 10%   +21.39% (p=0.000 n=10)
LoggerProviderLogger-16              650.1n ±  4%   690.1n ±  8%    +6.15% (p=0.019 n=10)   737.6n ± 13%   +13.47% (p=0.004 n=10)
WalkAttributes/1_attributes-16       5.264n ± 12%   5.510n ±  8%         ~ (p=0.812 n=10)   5.865n ±  5%   +11.41% (p=0.011 n=10)
WalkAttributes/10_attributes-16      5.440n ±  8%   5.881n ±  7%    +8.12% (p=0.004 n=10)   6.104n ±  7%   +12.21% (p=0.005 n=10)
WalkAttributes/100_attributes-16     5.403n ±  9%   5.894n ±  9%    +9.10% (p=0.029 n=10)   5.783n ±  6%         ~ (p=0.052 n=10)
WalkAttributes/1000_attributes-16    5.196n ±  4%   5.860n ±  8%   +12.79% (p=0.000 n=10)   5.981n ± 13%   +15.13% (p=0.002 n=10)
SetAddAttributes/SetAttributes-16    181.2n ± 14%   208.1n ± 12%   +14.85% (p=0.005 n=10)   209.9n ± 11%   +15.87% (p=0.007 n=10)
SetAddAttributes/AddAttributes-16    156.7n ± 14%   161.1n ± 16%         ~ (p=0.190 n=10)   165.5n ± 15%         ~ (p=0.315 n=10)
SimpleProcessorOnEmit-16            11.775n ± 10%   9.027n ± 17%   -23.33% (p=0.000 n=10)   9.389n ± 18%   -20.26% (p=0.002 n=10)
geomean                              169.1n         209.6n         +23.98%                  215.5n         +27.48%

                        │     old.txt     │               new.txt                │              new-pgo.txt              │
                        │       B/s       │     B/s       vs base                │      B/s       vs base                │
BatchProcessorOnEmit-16   1004.39Mi ± 15%   79.88Mi ± 7%  -92.05% (p=0.000 n=10)   81.06Mi ± 12%  -91.93% (p=0.000 n=10)

                                  │   old.txt    │                new.txt                 │               new-pgo.txt               │
                                  │     B/op     │    B/op      vs base                   │     B/op      vs base                   │
BatchProcessorOnEmit-16             0.000 ± 0%      0.000 ± 0%         ~ (p=1.000 n=10) ¹    0.000 ±  0%         ~ (p=1.000 n=10) ¹
Processor/Simple-16                   0.0 ± 0%      417.0 ± 0%         ? (p=0.000 n=10)      417.0 ±  0%         ? (p=0.000 n=10)
Processor/Batch-16                  621.5 ± 2%     1057.5 ± 1%   +70.15% (p=0.000 n=10)     1064.5 ±  1%   +71.28% (p=0.000 n=10)
Processor/SetTimestampSimple-16       0.0 ± 0%      417.0 ± 0%         ? (p=0.000 n=10)      418.0 ±  0%         ? (p=0.000 n=10)
Processor/SetTimestampBatch-16      626.5 ± 3%     1049.5 ± 1%   +67.52% (p=0.000 n=10)     1057.5 ±  2%   +68.79% (p=0.000 n=10)
Processor/AddAttributesSimple-16      0.0 ± 0%      417.0 ± 0%         ? (p=0.000 n=10)      417.0 ±  0%         ? (p=0.000 n=10)
Processor/AddAttributesBatch-16     616.5 ± 3%     1053.0 ± 2%   +70.80% (p=0.000 n=10)     1048.5 ±  2%   +70.07% (p=0.000 n=10)
Processor/SetAttributesSimple-16    48.00 ± 0%     466.00 ± 0%  +870.83% (p=0.000 n=10)     466.00 ±  0%  +870.83% (p=0.000 n=10)
Processor/SetAttributesBatch-16     648.0 ± 3%     1089.5 ± 1%   +68.13% (p=0.000 n=10)     1087.5 ±  4%   +67.82% (p=0.000 n=10)
LoggerNewRecord/5_attributes-16     0.000 ± 0%      0.000 ± 0%         ~ (p=1.000 n=10) ¹    0.000 ±  0%         ~ (p=1.000 n=10) ¹
LoggerNewRecord/10_attributes-16    610.0 ± 0%      610.0 ± 0%         ~ (p=1.000 n=10) ¹    610.0 ±  0%         ~ (p=1.000 n=10) ¹
LoggerProviderLogger-16             354.5 ± 6%      368.0 ± 7%         ~ (p=0.288 n=10)      391.0 ± 29%         ~ (p=0.239 n=10)
WalkAttributes/1_attributes-16      0.000 ± 0%      0.000 ± 0%         ~ (p=1.000 n=10) ¹    0.000 ±  0%         ~ (p=1.000 n=10) ¹
WalkAttributes/10_attributes-16     0.000 ± 0%      0.000 ± 0%         ~ (p=1.000 n=10) ¹    0.000 ±  0%         ~ (p=1.000 n=10) ¹
WalkAttributes/100_attributes-16    0.000 ± 0%      0.000 ± 0%         ~ (p=1.000 n=10) ¹    0.000 ±  0%         ~ (p=1.000 n=10) ¹
WalkAttributes/1000_attributes-16   0.000 ± 0%      0.000 ± 0%         ~ (p=1.000 n=10) ¹    0.000 ±  0%         ~ (p=1.000 n=10) ¹
SetAddAttributes/SetAttributes-16   48.00 ± 0%      48.00 ± 0%         ~ (p=1.000 n=10) ¹    48.00 ±  0%         ~ (p=1.000 n=10) ¹
SetAddAttributes/AddAttributes-16   0.000 ± 0%      0.000 ± 0%         ~ (p=1.000 n=10) ¹    0.000 ±  0%         ~ (p=1.000 n=10) ¹
SimpleProcessorOnEmit-16            0.000 ± 0%      0.000 ± 0%         ~ (p=1.000 n=10) ¹    0.000 ±  0%         ~ (p=1.000 n=10) ¹
geomean                                        ²                ?                       ²                 ?                       ²
¹ all samples are equal
² summaries must be >0 to compute geomean

                                  │   old.txt    │                new.txt                │              new-pgo.txt              │
                                  │  allocs/op   │ allocs/op   vs base                   │ allocs/op   vs base                   │
BatchProcessorOnEmit-16             0.000 ± 0%     0.000 ± 0%         ~ (p=1.000 n=10) ¹   0.000 ± 0%         ~ (p=1.000 n=10) ¹
Processor/Simple-16                 0.000 ± 0%     1.000 ± 0%         ? (p=0.000 n=10)     1.000 ± 0%         ? (p=0.000 n=10)
Processor/Batch-16                  0.000 ± 0%     1.000 ± 0%         ? (p=0.000 n=10)     1.000 ± 0%         ? (p=0.000 n=10)
Processor/SetTimestampSimple-16     0.000 ± 0%     1.000 ± 0%         ? (p=0.000 n=10)     1.000 ± 0%         ? (p=0.000 n=10)
Processor/SetTimestampBatch-16      0.000 ± 0%     1.000 ± 0%         ? (p=0.000 n=10)     1.000 ± 0%         ? (p=0.000 n=10)
Processor/AddAttributesSimple-16    0.000 ± 0%     1.000 ± 0%         ? (p=0.000 n=10)     1.000 ± 0%         ? (p=0.000 n=10)
Processor/AddAttributesBatch-16     0.000 ± 0%     1.000 ± 0%         ? (p=0.000 n=10)     1.000 ± 0%         ? (p=0.000 n=10)
Processor/SetAttributesSimple-16    1.000 ± 0%     2.000 ± 0%  +100.00% (p=0.000 n=10)     2.000 ± 0%  +100.00% (p=0.000 n=10)
Processor/SetAttributesBatch-16     1.000 ± 0%     2.000 ± 0%  +100.00% (p=0.000 n=10)     2.000 ± 0%  +100.00% (p=0.000 n=10)
LoggerNewRecord/5_attributes-16     0.000 ± 0%     0.000 ± 0%         ~ (p=1.000 n=10) ¹   0.000 ± 0%         ~ (p=1.000 n=10) ¹
LoggerNewRecord/10_attributes-16    4.000 ± 0%     4.000 ± 0%         ~ (p=1.000 n=10) ¹   4.000 ± 0%         ~ (p=1.000 n=10) ¹
LoggerProviderLogger-16             1.000 ± 0%     1.000 ± 0%         ~ (p=1.000 n=10) ¹   1.000 ± 0%         ~ (p=1.000 n=10) ¹
WalkAttributes/1_attributes-16      0.000 ± 0%     0.000 ± 0%         ~ (p=1.000 n=10) ¹   0.000 ± 0%         ~ (p=1.000 n=10) ¹
WalkAttributes/10_attributes-16     0.000 ± 0%     0.000 ± 0%         ~ (p=1.000 n=10) ¹   0.000 ± 0%         ~ (p=1.000 n=10) ¹
WalkAttributes/100_attributes-16    0.000 ± 0%     0.000 ± 0%         ~ (p=1.000 n=10) ¹   0.000 ± 0%         ~ (p=1.000 n=10) ¹
WalkAttributes/1000_attributes-16   0.000 ± 0%     0.000 ± 0%         ~ (p=1.000 n=10) ¹   0.000 ± 0%         ~ (p=1.000 n=10) ¹
SetAddAttributes/SetAttributes-16   1.000 ± 0%     1.000 ± 0%         ~ (p=1.000 n=10) ¹   1.000 ± 0%         ~ (p=1.000 n=10) ¹
SetAddAttributes/AddAttributes-16   0.000 ± 0%     0.000 ± 0%         ~ (p=1.000 n=10) ¹   0.000 ± 0%         ~ (p=1.000 n=10) ¹
SimpleProcessorOnEmit-16            0.000 ± 0%     0.000 ± 0%         ~ (p=1.000 n=10) ¹   0.000 ± 0%         ~ (p=1.000 n=10) ¹
geomean                                        ²               ?                       ²               ?                       ²
¹ all samples are equal
² summaries must be >0 to compute geomean
```
2024-08-01 10:13:43 +02:00
Sam Xie
48f6a11b75
Correct the comment for the priority of options and environments on otlpmetric (#5641)
Part of https://github.com/open-telemetry/opentelemetry-go/issues/5379
2024-07-24 18:42:37 -07:00
Damien Mathieu
3e17ef99d6
Allow relying on InstrumentationScope in SpanStub and fix remaining deprecation issues (#5627)
Rather than the deprecated InstrumentationLibrary

This is a replacement for
https://github.com/open-telemetry/opentelemetry-go/pull/3104, as after
this, there is no usage of `instrumentation.Library` within the SDK
anymore.

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Sam Xie <sam@samxie.me>
2024-07-24 09:33:07 +02:00
Sam Xie
52d4ce66e5
Include otlploggrpc module into the experimental-logs (#5629)
Resolve #5056
2024-07-18 10:41:34 -07:00
pree-dew
23abb5a3d8
Parse errormsgs in retryable status codes (#5541)
Fixes https://github.com/open-telemetry/opentelemetry-go/issues/5536

---------

Co-authored-by: Damien Mathieu <42@dmathieu.com>
2024-07-18 09:49:44 +02:00
Tyler Yahn
f5b4e99025
Update example instrumentation names (#5612)
Part of #5412 

- Use the recommended package name for the instrumentation exemplified
in the repository.
- Use the recommended detection of a `TracerProvider` from passed
context.
2024-07-12 11:53:18 -07:00
Robert Pająk
82184aa44b
[chore] Add missing changelog entry for #5577 (#5586)
Per
https://github.com/open-telemetry/opentelemetry-go-contrib/pull/5868#issuecomment-2213239602

Co-authored-by: Sam Xie <sam@samxie.me>
Co-authored-by: Damien Mathieu <damien.mathieu@elastic.co>
2024-07-09 09:36:59 +02:00
Sam Xie
aab5af16af
Correct the comment for the priority of options and environments on otlptracehttp (#5584)
part of https://github.com/open-telemetry/opentelemetry-go/issues/5379
2024-07-08 18:14:06 -07:00
Sam Xie
30ca54a7dc
Protect released changelog in CI (#5560)
resolve #1682

This PR adds a new action in CI to protect released sections in the
changelog from being changed. It compares the released sections in the
changelog from the base branch to the current PR. It fails if a change
happens.

Apply "Unlock Released Changelog" to bypass this check when doing a new
release.

Action result if we changed the unreleased section:
d640deb435
Action result if we changed the released section:
d672de7a54

---

Meaning of `awk '/^\<!-- Released section --\>/ {flag=1} /^\<!--
Released section ended --\>/ {flag=0} flag'`
- `/^\<!-- Released section --\>/ {flag=1}`
  - Matches lines starting with `<!-- Released section -->`.
  - Sets the flag variable to 1 (starting the printing of lines).
- `/^\<!-- Released section ended --\>/ {flag=0}`
  - Matches lines starting with `<!-- Released section ended -->`.
  - Sets the flag variable to 0.
  - So it is ok to change external reference links, like
    ```md 
    [Go 1.22]: https://go.dev/doc/go1.22
    [Go 1.21]: https://go.dev/doc/go1.21
    ```
- `flag` lines are printed only when the flag is 1.

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
2024-07-08 11:31:31 -07:00
Santi Leira
7e0af515e2
baggage: Fix invalid percent-encoded octet sequences (#5528)
# Goal

Replace the percent encoded octet sequence with the replacement code
point (U+FFFD) when it doesn't match the UTF-8 encoding schema.

Issue: https://github.com/open-telemetry/opentelemetry-go/issues/5519

Current behavior: 

```
package main

import (
	"fmt"
	"log"
	"unicode/utf8"

	"go.opentelemetry.io/otel/baggage"
)

func main() {
	kv := "k=aa%ffcc"

	b, err := baggage.Parse(kv)
	if err != nil {
		log.Fatal(err)
	}
	val := b.Members()[0].Value()

	fmt.Println(len(val)) # 5
	fmt.Println(utf8.ValidString(val)) # false
}
```

Expected behavior:
```
package main

import (
	"fmt"
	"log"
	"unicode/utf8"

	"go.opentelemetry.io/otel/baggage"
)

func main() {
	kv := "k=aa%ffcc"

	b, err := baggage.Parse(kv)
	if err != nil {
		log.Fatal(err)
	}
	val := b.Members()[0].Value()

	fmt.Println(len(val)) # 7
	fmt.Println(utf8.ValidString(val)) # true
}
```

## Benchmark

- `go test -bench=BenchmarkParse -count 20 > old.txt`
```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/baggage
BenchmarkParse-10    	 1548118	       774.3 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1547653	       786.0 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1544949	       770.5 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1558972	       770.2 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1554973	       774.7 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1550200	       779.6 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1545100	       774.3 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1549634	       777.5 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1552530	       769.6 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1536499	       855.0 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1552244	       770.4 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1560225	       767.4 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1562738	       772.3 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1556679	       838.9 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1562500	       777.1 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1530901	       836.5 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1000000	      1372 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1534678	       780.3 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1366180	       822.4 ns/op	     864 B/op	       8 allocs/op
BenchmarkParse-10    	 1539852	       796.8 ns/op	     864 B/op	       8 allocs/op
PASS
ok  	go.opentelemetry.io/otel/baggage	40.839s

```

- `go test -bench=BenchmarkParse -count 20 > new.txt`
```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/baggage
BenchmarkParse-10    	 1355893	       886.6 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1349192	       883.1 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1363053	       880.4 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1372404	       875.7 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1359979	       880.7 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1360497	       874.7 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1375520	       870.2 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1375268	       882.8 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1361998	       964.8 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1373461	       961.5 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1378065	       872.6 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1377290	       879.0 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1362094	       885.6 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1352175	       915.9 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1364914	       887.9 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1355782	       890.5 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1361848	      1245 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1163396	       878.8 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1370886	       916.6 ns/op	     888 B/op	       9 allocs/op
BenchmarkParse-10    	 1340149	      1175 ns/op	     888 B/op	       9 allocs/op
PASS
ok  	go.opentelemetry.io/otel/baggage	44.347s
```

- `benchstat old.txt new.txt`
```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/baggage
         │   old.txt   │               new.txt               │
         │   sec/op    │   sec/op     vs base                │
Parse-10   777.3n ± 3%   884.4n ± 4%  +13.77% (p=0.000 n=20)

         │  old.txt   │              new.txt              │
         │    B/op    │    B/op     vs base               │
Parse-10   864.0 ± 0%   888.0 ± 0%  +2.78% (p=0.000 n=20)

         │  old.txt   │              new.txt               │
         │ allocs/op  │ allocs/op   vs base                │
Parse-10   8.000 ± 0%   9.000 ± 0%  +12.50% (p=0.000 n=20)
```

---------

Co-authored-by: Damien Mathieu <42@dmathieu.com>
Co-authored-by: Robert Pająk <pellared@hotmail.com>
2024-07-08 15:01:04 +02:00
Tyler Yahn
81216fb002
Releases v1.28.0/v0.50.0/v0.4.0 (#5569)
### Added

- The `IsEmpty` method is added to the `Instrument` type in
`go.opentelemetry.io/otel/sdk/metric`.
This method is used to check if an `Instrument` instance is a
zero-value. (#5431)
- Store and provide the emitted `context.Context` in `ScopeRecords` of
`go.opentelemetry.io/otel/sdk/log/logtest`. (#5468)
- The `go.opentelemetry.io/otel/semconv/v1.26.0` package.
The package contains semantic conventions from the `v1.26.0` version of
the OpenTelemetry Semantic Conventions. (#5476)
- The `AssertRecordEqual` method to
`go.opentelemetry.io/otel/log/logtest` to allow comparison of two log
records in tests. (#5499)
- The `WithHeaders` option to
`go.opentelemetry.io/otel/exporters/zipkin` to allow configuring custom
http headers while exporting spans. (#5530)

### Changed

- `Tracer.Start` in `go.opentelemetry.io/otel/trace/noop` no longer
allocates a span for empty span context. (#5457)
- Upgrade `go.opentelemetry.io/otel/semconv/v1.25.0` to
`go.opentelemetry.io/otel/semconv/v1.26.0` in
`go.opentelemetry.io/otel/example/otel-collector`. (#5490)
- Upgrade `go.opentelemetry.io/otel/semconv/v1.25.0` to
`go.opentelemetry.io/otel/semconv/v1.26.0` in
`go.opentelemetry.io/otel/example/zipkin`. (#5490)
- Upgrade `go.opentelemetry.io/otel/semconv/v1.25.0` to
`go.opentelemetry.io/otel/semconv/v1.26.0` in
`go.opentelemetry.io/otel/exporters/zipkin`. (#5490)
- The exporter no longer exports the deprecated "otel.library.name" or
"otel.library.version" attributes.
- Upgrade `go.opentelemetry.io/otel/semconv/v1.25.0` to
`go.opentelemetry.io/otel/semconv/v1.26.0` in
`go.opentelemetry.io/otel/sdk/resource`. (#5490)
- Upgrade `go.opentelemetry.io/otel/semconv/v1.25.0` to
`go.opentelemetry.io/otel/semconv/v1.26.0` in
`go.opentelemetry.io/otel/sdk/trace`. (#5490)
- `SimpleProcessor.OnEmit` in `go.opentelemetry.io/otel/sdk/log` no
longer allocates a slice which makes it possible to have a
zero-allocation log processing using `SimpleProcessor`. (#5493)
- Use non-generic functions in the `Start` method of
`"go.opentelemetry.io/otel/sdk/trace".Trace` to reduce memory
allocation. (#5497)
- `service.instance.id` is populated for a `Resource` created with
`"go.opentelemetry.io/otel/sdk/resource".Default` with a default value
when `OTEL_GO_X_RESOURCE` is set. (#5520)
- Improve performance of metric instruments in
`go.opentelemetry.io/otel/sdk/metric` by removing unnecessary calls to
`time.Now`. (#5545)

### Fixed

- Log a warning to the OpenTelemetry internal logger when a `Record` in
`go.opentelemetry.io/otel/sdk/log` drops an attribute due to a limit
being reached. (#5376)
- Identify the `Tracer` returned from the global `TracerProvider` in
`go.opentelemetry.io/otel/global` with its schema URL. (#5426)
- Identify the `Meter` returned from the global `MeterProvider` in
`go.opentelemetry.io/otel/global` with its schema URL. (#5426)
- Log a warning to the OpenTelemetry internal logger when a `Span` in
`go.opentelemetry.io/otel/sdk/trace` drops an attribute, event, or link
due to a limit being reached. (#5434)
- Document instrument name requirements in
`go.opentelemetry.io/otel/metric`. (#5435)
- Prevent random number generation data-race for experimental rand
exemplars in `go.opentelemetry.io/otel/sdk/metric`. (#5456)
- Fix counting number of dropped attributes of `Record` in
`go.opentelemetry.io/otel/sdk/log`. (#5464)
- Fix panic in baggage creation when a member contains `0x80` char in
key or value. (#5494)
- Correct comments for the priority of the `WithEndpoint` and
`WithEndpointURL` options and their corresponding environment variables
in `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc`.
(#5508)
- Retry trace and span ID generation if it generated an invalid one in
`go.opentelemetry.io/otel/sdk/trace`. (#5514)
- Fix stale timestamps reported by the last-value aggregation. (#5517)
- Indicate the `Exporter` in
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp` must be
created by the `New` method. (#5521)
- Improved performance in all `{Bool,Int64,Float64,String}SliceValue`
functions of `go.opentelemetry.io/attributes` by reducing the number of
allocations. (#5549)
2024-07-02 13:29:45 -07:00
David Ashpole
0485de287e
Move time.Now call into exemplar reservoir to improve performance (#5545)
Part of addressing
https://github.com/open-telemetry/opentelemetry-go/issues/5542.

### Motivation

This removes the `time.Now()` call from filtered-out Exemplars by only
invoking `time.Now()` after the filtering decision is made. This
improvement is especially noticeable for measurements without any
attributes.

```
goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/metric
cpu: AMD EPYC 7B12
                                                                 │   old.txt    │                new.txt                │
                                                                 │    sec/op    │   sec/op     vs base                  │
SyncMeasure/NoView/Int64Counter/Attributes/0-24                    158.20n ± 4%   99.83n ± 1%  -36.90% (p=0.000 n=10)
SyncMeasure/NoView/Int64Counter/Attributes/1-24                     333.3n ± 4%   274.8n ± 1%  -17.55% (p=0.000 n=10)
SyncMeasure/NoView/Int64Counter/Attributes/10-24                    1.640µ ± 1%   1.600µ ± 1%   -2.41% (p=0.000 n=10)
SyncMeasure/NoView/Float64Counter/Attributes/0-24                   159.0n ± 3%   101.3n ± 0%  -36.27% (p=0.000 n=10)
SyncMeasure/NoView/Float64Counter/Attributes/1-24                   340.0n ± 2%   272.0n ± 1%  -20.00% (p=0.000 n=10)
SyncMeasure/NoView/Float64Counter/Attributes/10-24                  1.661µ ± 1%   1.597µ ± 0%   -3.85% (p=0.000 n=10)
SyncMeasure/NoView/Int64UpDownCounter/Attributes/0-24               159.8n ± 1%   103.1n ± 0%  -35.50% (p=0.000 n=10)
SyncMeasure/NoView/Int64UpDownCounter/Attributes/1-24               339.5n ± 1%   273.1n ± 0%  -19.57% (p=0.000 n=10)
SyncMeasure/NoView/Int64UpDownCounter/Attributes/10-24              1.656µ ± 0%   1.589µ ± 0%   -4.05% (p=0.000 n=10)
SyncMeasure/NoView/Float64UpDownCounter/Attributes/0-24             159.3n ± 2%   100.8n ± 0%  -36.74% (p=0.000 n=10)
SyncMeasure/NoView/Float64UpDownCounter/Attributes/1-24             337.9n ± 2%   271.8n ± 1%  -19.55% (p=0.000 n=10)
SyncMeasure/NoView/Float64UpDownCounter/Attributes/10-24            1.657µ ± 0%   1.593µ ± 1%   -3.83% (p=0.000 n=10)
SyncMeasure/NoView/Int64Histogram/Attributes/0-24                  144.65n ± 4%   89.38n ± 0%  -38.21% (p=0.000 n=10)
SyncMeasure/NoView/Int64Histogram/Attributes/1-24                   235.7n ± 2%   183.5n ± 0%  -22.15% (p=0.000 n=10)
SyncMeasure/NoView/Int64Histogram/Attributes/10-24                  900.8n ± 1%   836.8n ± 0%   -7.10% (p=0.000 n=10)
SyncMeasure/NoView/Float64Histogram/Attributes/0-24                145.60n ± 5%   93.48n ± 1%  -35.80% (p=0.000 n=10)
SyncMeasure/NoView/Float64Histogram/Attributes/1-24                 240.9n ± 1%   183.0n ± 0%  -24.06% (p=0.000 n=10)
SyncMeasure/NoView/Float64Histogram/Attributes/10-24                905.6n ± 1%   826.3n ± 0%   -8.76% (p=0.000 n=10)
SyncMeasure/DropView/Int64Counter/Attributes/0-24                   20.33n ± 0%   20.35n ± 0%        ~ (p=0.302 n=10)
SyncMeasure/DropView/Int64Counter/Attributes/1-24                   26.46n ± 0%   26.45n ± 1%        ~ (p=0.868 n=10)
SyncMeasure/DropView/Int64Counter/Attributes/10-24                  26.50n ± 0%   26.47n ± 0%        ~ (p=0.208 n=10)
SyncMeasure/DropView/Float64Counter/Attributes/0-24                 20.34n ± 1%   20.27n ± 0%   -0.34% (p=0.009 n=10)
SyncMeasure/DropView/Float64Counter/Attributes/1-24                 26.55n ± 0%   26.60n ± 1%        ~ (p=0.109 n=10)
SyncMeasure/DropView/Float64Counter/Attributes/10-24                26.59n ± 1%   26.57n ± 1%        ~ (p=0.926 n=10)
SyncMeasure/DropView/Int64UpDownCounter/Attributes/0-24             20.38n ± 1%   20.38n ± 0%        ~ (p=0.725 n=10)
SyncMeasure/DropView/Int64UpDownCounter/Attributes/1-24             26.39n ± 0%   26.44n ± 0%        ~ (p=0.238 n=10)
SyncMeasure/DropView/Int64UpDownCounter/Attributes/10-24            26.52n ± 0%   26.42n ± 0%   -0.36% (p=0.049 n=10)
SyncMeasure/DropView/Float64UpDownCounter/Attributes/0-24           20.30n ± 0%   20.25n ± 0%        ~ (p=0.196 n=10)
SyncMeasure/DropView/Float64UpDownCounter/Attributes/1-24           26.57n ± 0%   26.54n ± 1%        ~ (p=0.540 n=10)
SyncMeasure/DropView/Float64UpDownCounter/Attributes/10-24          26.57n ± 0%   26.51n ± 1%        ~ (p=0.643 n=10)
SyncMeasure/DropView/Int64Histogram/Attributes/0-24                 20.37n ± 0%   20.36n ± 1%        ~ (p=1.000 n=10)
SyncMeasure/DropView/Int64Histogram/Attributes/1-24                 26.41n ± 0%   26.50n ± 0%   +0.32% (p=0.007 n=10)
SyncMeasure/DropView/Int64Histogram/Attributes/10-24                26.44n ± 0%   26.55n ± 1%   +0.42% (p=0.012 n=10)
SyncMeasure/DropView/Float64Histogram/Attributes/0-24               20.30n ± 0%   20.45n ± 0%   +0.74% (p=0.000 n=10)
SyncMeasure/DropView/Float64Histogram/Attributes/1-24               26.52n ± 0%   26.48n ± 0%        ~ (p=0.127 n=10)
SyncMeasure/DropView/Float64Histogram/Attributes/10-24              26.55n ± 0%   26.48n ± 0%   -0.26% (p=0.002 n=10)
SyncMeasure/AttrFilterView/Int64Counter/Attributes/0-24             170.5n ± 2%   110.8n ± 0%  -35.03% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Int64Counter/Attributes/1-24             402.5n ± 1%   331.5n ± 1%  -17.64% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Int64Counter/Attributes/10-24            1.363µ ± 1%   1.281µ ± 1%   -6.02% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Float64Counter/Attributes/0-24           170.6n ± 1%   111.5n ± 1%  -34.64% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Float64Counter/Attributes/1-24           397.1n ± 1%   335.9n ± 0%  -15.41% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Float64Counter/Attributes/10-24          1.371µ ± 1%   1.279µ ± 1%   -6.71% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Int64UpDownCounter/Attributes/0-24       170.1n ± 1%   112.2n ± 0%  -34.09% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Int64UpDownCounter/Attributes/1-24       397.5n ± 1%   330.2n ± 0%  -16.93% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Int64UpDownCounter/Attributes/10-24      1.371µ ± 1%   1.289µ ± 1%   -5.95% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Float64UpDownCounter/Attributes/0-24     171.4n ± 2%   112.9n ± 0%  -34.13% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Float64UpDownCounter/Attributes/1-24     397.0n ± 3%   336.4n ± 0%  -15.24% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Float64UpDownCounter/Attributes/10-24    1.383µ ± 1%   1.305µ ± 1%   -5.61% (p=0.000 n=10)
SyncMeasure/AttrFilterView/Int64Histogram/Attributes/0-24          157.30n ± 2%   98.58n ± 1%  -37.33% (p=0.000 n=6+10)
```

### Changes

* Introduce `exemplar.Filter`, which is a filter function based on the
context. It will not be user-facing, so we can always add other
parameters later if needed.
* Introduce `exemplar.FilteredReservoir`, which is similar to a
reservoir, except it does not receive a timestamp. It gets the current
time after the filter decision has been made. It uses generics to avoid
the call to exemplar.NewValue(), since it is internal-only.
* The `exemplar.Reservoir` is left as-is, so that it can be made public
when exemplars are stable. It still includes a timestamp argument.
* Unit tests are updated to expect a much lower number of calls to
time.Now
* `exemplar.Drop` is now an `exemplar.FilteredReservoir` instead of a
`Reservoir`, since we don't need a Reservoir to store things in if the
measurement is always dropped.

Co-authored-by: Sam Xie <sam@samxie.me>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-07-01 09:36:11 -07:00
Fabrice Vaillant
f3a2d96022
Reduces allocation in attributes (#5549)
Remove one allocation in all SliceValue function (going from 3 to 2).

Here is benchstat results

```
goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/internal/attribute
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
                    │   old.txt    │               new.txt                │
                    │    sec/op    │    sec/op     vs base                │
BoolSliceValue-8      128.4n ± 22%   103.8n ± 25%  -19.12% (p=0.007 n=10)
Int64SliceValue-8     167.9n ±  7%   130.8n ±  5%  -22.13% (p=0.000 n=10)
Float64SliceValue-8   133.8n ± 14%   122.6n ±  4%   -8.33% (p=0.000 n=10)
StringSliceValue-8    166.4n ±  9%   158.5n ± 10%   -4.75% (p=0.037 n=10)
geomean               148.0n         127.5n        -13.88%

                    │   old.txt   │              new.txt               │
                    │    B/op     │    B/op     vs base                │
BoolSliceValue-8      32.000 ± 0%   8.000 ± 0%  -75.00% (p=0.000 n=10)
Int64SliceValue-8      88.00 ± 0%   64.00 ± 0%  -27.27% (p=0.000 n=10)
Float64SliceValue-8    88.00 ± 0%   64.00 ± 0%  -27.27% (p=0.000 n=10)
StringSliceValue-8     152.0 ± 0%   128.0 ± 0%  -15.79% (p=0.000 n=10)
geomean                78.34        45.25       -42.23%

                    │  old.txt   │              new.txt               │
                    │ allocs/op  │ allocs/op   vs base                │
BoolSliceValue-8      3.000 ± 0%   2.000 ± 0%  -33.33% (p=0.000 n=10)
Int64SliceValue-8     3.000 ± 0%   2.000 ± 0%  -33.33% (p=0.000 n=10)
Float64SliceValue-8   3.000 ± 0%   2.000 ± 0%  -33.33% (p=0.000 n=10)
StringSliceValue-8    3.000 ± 0%   2.000 ± 0%  -33.33% (p=0.000 n=10)
geomean               3.000        2.000       -33.33%
```
2024-06-27 10:27:48 -07:00
Sam Xie
418f19d341
Indicate the otlploghttp exporter must be created by the New method (#5521)
The empty Exporter would cause panics.
2024-06-27 11:41:05 +02:00
Srijan Rastogi
af317f05ef
Add WithHeaders option for Zipkin exporter (#5530)
- Added `WithHeaders` option func, which allows user to set custom http
request headers while exporting spans.
- Closes: #3474

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-06-26 10:03:32 -07:00
Johannes Tax
4e94f405ab
Populate service.instance.id with a default value when OTEL_GO_X_RESOURCE is set (#5520)
As discussed in a previous SIG meeting, this PR adds support for setting
a default value for
[`service.instance.id`](https://github.com/open-telemetry/semantic-conventions/tree/main/docs/resource#service-experimental)
according to semantic conventions:

> Implementations, such as SDKs, are recommended to generate a random
Version 1 or Version 4 [RFC 4122](https://www.ietf.org/rfc/rfc4122.txt)
UUID, but are free to use an inherent unique ID as the source of this
value if stability is desirable. In that case, the ID SHOULD be used as
source of a UUID Version 5 and SHOULD use the following UUID as the
namespace: `4d63009a-8d0f-11ee-aad7-4c796ed8e320`.

This PR follows the recommendation and populates `service.instance.id`
with a random Version 4 UUID. The functionality is guarded by the
`OTEL_GO_X_RESOURCE` feature flag environment variable.

There are plans to declare `service.instance.id` stable and also make it
a required attribute (similar to `service.name`). Once this happens, the
functionality can be made available regardless of whether
`OTEL_GO_X_RESOURCE` is set.

Closes
https://github.com/open-telemetry/opentelemetry-go-contrib/issues/5423

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Tyler Yahn <codingalias@gmail.com>
2024-06-24 08:25:49 -07:00
David Ashpole
773aec217d
Fix timestamp handling for the lastvalue aggregation (#5517)
Fixes https://github.com/open-telemetry/opentelemetry-go/issues/5510

From https://opentelemetry.io/docs/specs/otel/metrics/sdk/#metricreader:

> The ending timestamp (i.e. TimeUnixNano) MUST always be equal to time
the metric data point took effect, which is equal to when
[MetricReader.Collect](https://opentelemetry.io/docs/specs/otel/metrics/sdk/#collect)
was invoked. These rules apply to all metrics, not just those whose
[point
kinds](https://opentelemetry.io/docs/specs/otel/metrics/data-model/#point-kinds)
includes an aggregation temporality field.

Before https://github.com/open-telemetry/opentelemetry-go/pull/5305, we
used the measurement time as the timestamp, but it didn't matter because
the collection time is always the same as the measurement time for
asynchronous instruments. We didn't catch the issue when we implemented
synchronous instruments.

This PR changes the (end) timestamp handling for the Last Value
aggregation to match the (end) timestamp handling for sum and histogram
aggregations. As described in the spec above, we take the timestamp when
computing the aggregation during Collect.
2024-06-19 12:13:04 +02:00
Fools
ffe855df33
Fix IDGenerator may generate zero TraceId / SpanId (#5514)
# Description
Fix #5462 

## Type of change

add a loop to generate the spanID and traceID. 
the loop will not stop until it generate a valid ID

- [x] Bug fix (non-breaking change which fixes an issue)

---------

Co-authored-by: Damien Mathieu <42@dmathieu.com>
Co-authored-by: Robert Pająk <pellared@hotmail.com>
2024-06-18 15:57:45 -07:00
Sam Xie
f5e613757f
Correct the comment for the priority of options and environments on otlptracegrpc (#5508)
part of #5379

---------

Co-authored-by: David Ashpole <dashpole@google.com>
Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-06-18 10:10:19 -07:00
Fabio Bozzo
478f85bb15
fix(baggage): validate chars panic with 0x80 (#5494)
The validation rule for baggage key/values chars has a N+1 problem with
the unicode value: `0x80`.

For instance, `baggage.NewMemberRaw` could be called with a string value
including the rune `128` and return no error.

Then `baggage.New` would panic on `validateValueChar`:
```
=== RUN   TestValidateValueChar
--- FAIL: TestValidateValueChar (0.00s)
panic: runtime error: index out of range [128] with length 128 [recovered]
	panic: runtime error: index out of range [128] with length 128
```

---------

Co-authored-by: Sam Xie <sam@samxie.me>
2024-06-17 09:03:57 -07:00
ttoad
30e82e01b6
trace: Use non-generic to replace newEvictedQueue in trace.start to reduce memory usage. (#5497)
benchstat:
```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/sdk/trace
              │     old     │                 new                 │
              │   sec/op    │   sec/op     vs base                │
TraceStart-10   950.6n ± 1%   641.0n ± 0%  -32.57% (p=0.000 n=10)

              │     old     │                new                 │
              │    B/op     │    B/op     vs base                │
TraceStart-10   1040.0 ± 0%   704.0 ± 0%  -32.31% (p=0.000 n=10)

              │    old     │                new                 │
              │ allocs/op  │ allocs/op   vs base                │
TraceStart-10   20.00 ± 0%   14.00 ± 0%  -30.00% (p=0.000 n=10)
```

---------

Co-authored-by: Damien Mathieu <damien.mathieu@elastic.co>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-06-17 07:39:03 -07:00
Damien Mathieu
5331939a74
Introduce logtest.AssertRecordEqual (#5499)
This is a follow-up to the comments in
https://github.com/open-telemetry/opentelemetry-go/pull/5468#discussion_r1624173196,
introducing `logtest.AssertRecordEqual` so bridges can compare log
records more easily.

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-06-12 11:35:11 -07:00
Robert Pająk
6082e830c2
sdk/log: Remove slice allocation from SimpleProcessor.OnEmit (#5493)
The reason for this improvement (apart that, in general, it is good to
have better performance) is there may be good use case to use a
`SimpleProcessor` to emit logs efficiently to standard output. It could
be one of the most efficient solutions (from application performance
perspective) and thanks to such configuration the user would not lose
any logs if the application suddenly crashes. For instance, a useful
configuration could be a simple processor with an OTLP file exporter
(https://github.com/open-telemetry/opentelemetry-go/issues/5408).

I think we might consider changing the following portion of
`SimpleProcessor` documentation (but I would prefer to do it as separate
PR):

> // This Processor is not recommended for production use. The
synchronous
// nature of this Processor make it good for testing, debugging, or
// showing examples of other features, but it can be slow and have a
high
// computation resource usage overhead. [NewBatchProcessor] is
recommended
// for production use instead.

```
goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/log
cpu: Intel(R) Core(TM) i9-10885H CPU @ 2.40GHz
                                    │   old.txt   │               new.txt                │
                                    │   sec/op    │    sec/op     vs base                │
Processor/Simple-16                   449.4n ± 7%   156.2n ±  5%  -65.25% (p=0.000 n=10)
Processor/ModifyTimestampSimple-16    468.0n ± 6%   171.3n ± 15%  -63.40% (p=0.000 n=10)
Processor/ModifyAttributesSimple-16   515.8n ± 3%   233.2n ±  8%  -54.77% (p=0.000 n=10)
geomean                               476.9n        184.1n        -61.40%

                                    │   old.txt   │                 new.txt                 │
                                    │    B/op     │    B/op     vs base                     │
Processor/Simple-16                    417.0 ± 0%     0.0 ± 0%  -100.00% (p=0.000 n=10)
Processor/ModifyTimestampSimple-16     417.0 ± 0%     0.0 ± 0%  -100.00% (p=0.000 n=10)
Processor/ModifyAttributesSimple-16   465.00 ± 0%   48.00 ± 0%   -89.68% (p=0.000 n=10)
geomean                                432.4                    ?                       ¹ ²
¹ summaries must be >0 to compute geomean
² ratios must be >0 to compute geomean

                                    │  old.txt   │                 new.txt                 │
                                    │ allocs/op  │ allocs/op   vs base                     │
Processor/Simple-16                   1.000 ± 0%   0.000 ± 0%  -100.00% (p=0.000 n=10)
Processor/ModifyTimestampSimple-16    1.000 ± 0%   0.000 ± 0%  -100.00% (p=0.000 n=10)
Processor/ModifyAttributesSimple-16   2.000 ± 0%   1.000 ± 0%   -50.00% (p=0.000 n=10)
geomean                               1.260                    ?                       ¹ ²
¹ summaries must be >0 to compute geomean
² ratios must be >0 to compute geomean
```

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-06-11 07:28:56 -07:00
Tyler Yahn
6a0fa3c911
Upgrade semconv use to v1.26.0 (#5490)
Follow up to #5476
2024-06-06 09:36:59 -07:00
Damien Mathieu
a2505aa68c
log/logtest: provide record with their context (#5468)
So the instrumentation tests can check the provided context.
See https://github.com/open-telemetry/opentelemetry-go-contrib/pull/5707

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Sam Xie <sam@samxie.me>
2024-06-06 08:28:28 -07:00
Aaron Clawson
db74d18729
Add semconv/v1.26.0, removes deprecated semconvs (#5476)
Based on #5394 

This removes `event.go`, `resource.go`, and `trace.go` from generation
because they now only contain references to the attribute registry.
Thus, they will generate empty files.

This also does not include any deprecated semantic convention. Users of
deprecated semantic conventions should continue to use them from the
previous versions that have been published.

[v1.26.0 semantic conventions release
notes](https://github.com/open-telemetry/semantic-conventions/releases/tag/v1.26.0):

<div data-pjax="true" data-test-selector="body-content"
data-view-component="true" class="markdown-body my-3"><h2>v1.26.0</h2>
<h3>🛑 Breaking changes 🛑</h3>
<ul>
<li>
<p><code>db</code>: Rename <code>db.statement</code> to
<code>db.query.text</code> and introduce
<code>db.query.parameter.&lt;key&gt;</code> (<a class="issue-link
js-issue-link" data-error-text="Failed to load title"
data-id="2123681817" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/716"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/716/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/716">#716</a>)</p>
</li>
<li>
<p><code>db</code>: Renames <code>db.sql.table</code>,
<code>db.cassandra.table</code>, <code>db.mongodb.collection</code>, and
<code>db.cosmosdb.container</code> attributes to
<code>db.collection.name</code> (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2221821104"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/870"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/870/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/870">#870</a>)</p>
</li>
<li>
<p><code>db</code>: Rename <code>db.operation</code> to
<code>db.operation.name</code>. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2226761377"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/884"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/884/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/884">#884</a>)</p>
</li>
<li>
<p><code>messaging</code>: Rename <code>messaging.operation</code> to
<code>messaging.operation.type</code>, add
<code>messaging.operation.name</code>. (<a class="issue-link
js-issue-link" data-error-text="Failed to load title"
data-id="2227637055" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/890"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/890/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/890">#890</a>)</p>
</li>
<li>
<p><code>db</code>: Deprecate the <code>db.user</code> attribute. (<a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="2226817211" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/885"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/885/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/885">#885</a>)</p>
</li>
<li>
<p><code>db</code>: Rename <code>db.name</code> and
<code>db.redis.database_index</code> to <code>db.namespace</code>,
deprecate <code>db.mssql.instance_name</code>. (<a class="issue-link
js-issue-link" data-error-text="Failed to load title"
data-id="2226817211" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/885"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/885/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/885">#885</a>)</p>
</li>
<li>
<p><code>db</code>: Remove <code>db.instance.id</code>. For
Elasticsearch, replace with <code>db.elasticsearch.node.name</code>. (<a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="2266411070" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/972"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/972/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/972">#972</a>)</p>
</li>
<li>
<p><code>db</code>: Clarify database span name format and fallback
values. (<a class="issue-link js-issue-link" data-error-text="Failed to
load title" data-id="2266545339" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/974"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/974/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/974">#974</a>,
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="2123611008" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/704"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/704/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/704">#704</a>)</p>
</li>
<li>
<p><code>db</code>: Rename <code>db.client.connections.*</code> metric
namespace to <code>db.client.connection.*</code> and rename
<code>db.client.connection.usage</code> to
<code>db.client.connection.count</code>.<br>
(<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1815993771" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/201"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/201/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/201">#201</a>,
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="2262290114" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/967"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/967/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/967">#967</a>)</p>
</li>
<li>
<p><code>db</code>: Rename <code>pool.name</code> to
<code>db.client.connections.pool.name</code> and <code>state</code> to
<code>db.client.connections.state</code>. (<a class="issue-link
js-issue-link" data-error-text="Failed to load title"
data-id="2232095641" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/909"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/909/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/909">#909</a>)</p>
</li>
<li>
<p><code>system</code>: Deprecate <code>shared</code> from
<code>system.memory.state</code> values and make it a standalone metric
(<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1993746916" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/522"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/522/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/522">#522</a>)</p>
</li>
<li>
<p><code>device.app.lifecycle</code>: Reformat and update the
<code>device.app.lifecycle</code> event description adds constraints for
the possible values of the <code>android.state</code> and
<code>ios.state</code>.<br>
(<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="2170421333" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/794"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/794/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/794">#794</a>)<br>
Removes the <code>ios.lifecycle.events</code> and
<code>android.lifecycle.events</code> attributes from the global
registry and adds constraints for the possible values of the
<code>android.state</code> and <code>ios.state</code> attributes.</p>
</li>
<li>
<p><code>messaging</code>: Rename <code>messaging.client_id</code> to
<code>messaging.client.id</code> (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2250463504"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/935"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/935/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/935">#935</a>)</p>
</li>
<li>
<p><code>rpc</code>: Rename<code>message.*</code> attributes under
<code>rpc</code> to <code>rpc.message.*</code>. Deprecate old
<code>message.*</code> attributes. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2211426432"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/854"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/854/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/854">#854</a>)</p>
</li>
</ul>
<h3>🚀 New components 🚀</h3>
<ul>
<li><code>gen-ai</code>: Introducing semantic conventions for GenAI
clients. (<a class="issue-link js-issue-link" data-error-text="Failed to
load title" data-id="1897516973" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/327"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/327/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/327">#327</a>)</li>
</ul>
<h3>💡 Enhancements 💡</h3>
<ul>
<li>
<p><code>all</code>: Markdown snippets are now generated by jinja
templates in the <code>templates</code> directory. (<a class="issue-link
js-issue-link" data-error-text="Failed to load title"
data-id="2276527861" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/1000"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/1000/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/1000">#1000</a>)</p>
</li>
<li>
<p><code>db, messaging, gen_ai</code>: Clarify that
<code>db.system</code>, <code>messaging.system</code>,
<code>gen_ai.system</code> attributes capture the client perception and
may differ from the actual product name. (<a class="issue-link
js-issue-link" data-error-text="Failed to load title"
data-id="2184898831" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/813"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/813/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/813">#813</a>,
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="2286519206" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/1016"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/1016/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/1016">#1016</a>)</p>
</li>
<li>
<p><code>messaging</code>: Show all applicable attributes in individual
messaging semantic conventions. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2221751255"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/869"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/869/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/869">#869</a>,
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="2286733771" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/1018"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/1018/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/1018">#1018</a>)</p>
</li>
<li>
<p><code>process</code>: Add additional attributes to process attribute
registry (<a class="issue-link js-issue-link" data-error-text="Failed to
load title" data-id="2015129430" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/564"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/564/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/564">#564</a>)</p>
</li>
<li>
<p><code>messaging</code>: Add a GCP Pub/Sub unary pull example and the
new GCP messaging attributes: -
<code>messaging.gcp_pubsub.message.ack_deadline</code>, -
<code>messaging.gcp_pubsub.message.ack_id</code>, -
<code>messaging.gcp_pubsub.message.delivery_attempt</code> (<a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1995123229" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/527"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/527/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/527">#527</a>)</p>
</li>
<li>
<p><code>db</code>: Add <code>db.client.operation.duration</code> metric
(<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1991797441" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/512"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/512/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/512">#512</a>)</p>
</li>
<li>
<p><code>messaging</code>: Adds `messaging.destination.partition.id`` to
the messaging attributes (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2185047744"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/814"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/814/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/814">#814</a>)</p>
</li>
<li>
<p><code>exception</code>: Replace constraints with requirement levels
on exceptions. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2216070269"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/862"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/862/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/862">#862</a>)</p>
</li>
<li>
<p><code>process</code>: Replace constraints with requirement_level in
process attributes. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2216082891"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/863"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/863/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/863">#863</a>)</p>
</li>
<li>
<p><code>db</code>: Reorganize DB conventions to be shared across span
and metric conventions. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2232098784"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/910"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/910/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/910">#910</a>)</p>
</li>
<li>
<p><code>all</code>: Migrate Attribute Registry to be completely
autogenerated. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="1811747563"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/197"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/197/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/197">#197</a>)<br>
Migrate to using weaver for markdown generation (snippet +
registry).<br>
The entirety of the registry now is generated using weaver with
templates<br>
under the <code>templates/</code> directory. Snippets still require a
hardcoded<br>
command.</p>
</li>
<li>
<p><code>http</code>: List all HTTP client and server attributes in the
corresponding table, remove common attributes from yaml and markdown.
(<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="2249267191" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/928"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/928/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/928">#928</a>)</p>
</li>
<li>
<p><code>other</code>: Document patterns and suggestions for semconv
code generation. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2005434950"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/551"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/551/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/551">#551</a>,
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="2260022392" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/953"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/953/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/953">#953</a>)</p>
</li>
<li>
<p><code>db</code>: Show applicable common attributes in individual
database semantic conventions. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2266443235"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/973"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/973/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/973">#973</a>)</p>
</li>
<li>
<p><code>db</code>: Add <code>error.type</code> attribute to the
database span and operation duration metric. (<a class="issue-link
js-issue-link" data-error-text="Failed to load title"
data-id="2266561839" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/975"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/975/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/975">#975</a>)</p>
</li>
<li>
<p><code>db</code>: Parameterized query text does not need to be
sanitized by default (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2266574593"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/976"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/976/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/976">#976</a>)</p>
</li>
<li>
<p><code>http</code>: List experimental HTTP attributes applicable to
HTTP client and server spans. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2272874112"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/989"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/989/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/989">#989</a>)</p>
</li>
<li>
<p><code>db</code>: Finalizes the migration requirement for
instrumentations to follow when updating to stable database semconv. (<a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="2124200768" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/719"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/719/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/719">#719</a>)</p>
</li>
<li>
<p><code>http</code>: New <code>url.template</code> attribute added to
URL, HTTP client attributes are extended with optional low-cardinality
<code>url.template</code> (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2107516610"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/675"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/675/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/675">#675</a>)</p>
</li>
<li>
<p><code>db</code>: Add note to <code>db.collection.name</code>,
<code>db.namespace</code>, and <code>db.operation.name</code> about
capturing those without attempting to do any case normalization.<br>
(<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="2226822323" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/886"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/886/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/886">#886</a>)</p>
</li>
<li>
<p><code>events</code>: Provides additional definitions of log events
and their structure. (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2139735298"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/755"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/755/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/755">#755</a>)</p>
</li>
<li>
<p><code>k8s</code>: add container.status.last_terminated_reason
resource attribute (<a class="issue-link js-issue-link"
data-error-text="Failed to load title" data-id="2243002863"
data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/922"
data-hovercard-type="issue"
data-hovercard-url="/open-telemetry/semantic-conventions/issues/922/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/issues/922">#922</a>)</p>
</li>
</ul>
<h3>🧰 Bug fixes 🧰</h3>
<ul>
<li><code>http</code>: Add previously deprecated http attributes to
registry (<a class="issue-link js-issue-link" data-error-text="Failed to
load title" data-id="2288411532" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/1025"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/1025/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/1025">#1025</a>)<br>
These attributes were deprecated in 1.13</li>
<li><code>net</code>: Add previously deprecated net attributes to
registry (<a class="issue-link js-issue-link" data-error-text="Failed to
load title" data-id="2289802107" data-permission-text="Title is private"
data-url="https://github.com/open-telemetry/semantic-conventions/issues/1029"
data-hovercard-type="pull_request"
data-hovercard-url="/open-telemetry/semantic-conventions/pull/1029/hovercard"
href="https://github.com/open-telemetry/semantic-conventions/pull/1029">#1029</a>)<br>
These attributes were deprecated in 1.13</li>
</ul></div>


### Follow up work

- [ ] Update all dependencies on semconv to v1.26.0

---------

Co-authored-by: Tyler Yahn <codingalias@gmail.com>
Co-authored-by: Aaron Clawson <MadVikingGod@users.noreply.github.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-06-05 08:20:05 -07:00
ttoad
86df763d90
trace: Span in noop.Start is no longer allocated (#5457)
trace/noop/noop.Span should be instance. This will reduce memory waste.

Benchmark results

with changes:
new.txt
```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/trace/noop
BenchmarkNoopInstance-10        29894822                39.94 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        29675424                39.99 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        30064700                39.98 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        29962016                40.03 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        30060465                40.02 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        29916855                40.04 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        29829998                40.28 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        30084706                39.99 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        30087441                40.02 ns/op           48 B/op          1 allocs/op
BenchmarkNoopInstance-10        29864365                40.14 ns/op           48 B/op          1 allocs/op
```
without changes on `main`:
old.txt
```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/trace/noop
BenchmarkNoopInstance-10        14813442                67.64 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17714486                68.17 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17701257                67.66 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17805859                67.69 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17912841                67.43 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17864120                67.58 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17663130                68.41 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17740423                67.57 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17751040                67.56 ns/op          128 B/op          2 allocs/op
BenchmarkNoopInstance-10        17738064                67.91 ns/op          128 B/op          2 allocs/op

```

benchstat: 
```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/trace/noop
                │   old.txt   │               new.txt               │
                │   sec/op    │   sec/op     vs base                │
NoopInstance-10   67.65n ± 1%   40.02n ± 0%  -40.84% (p=0.000 n=10)

                │   old.txt   │              new.txt               │
                │    B/op     │    B/op     vs base                │
NoopInstance-10   128.00 ± 0%   48.00 ± 0%  -62.50% (p=0.000 n=10)

                │  old.txt   │              new.txt               │
                │ allocs/op  │ allocs/op   vs base                │
NoopInstance-10   2.000 ± 0%   1.000 ± 0%  -50.00% (p=0.000 n=10)
```

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2024-06-04 11:14:10 -07:00
Anton Manakin
4fc7162e89
sdk/log: Fix counting number of dropped attributes of log.Record (#5464)
Applying attribute limits in `Record` uses value receiver.
But it should add count of dropped attrs.
In this PR I add using of pointer receiver.

Also it's slightly faster with pointer receiver:

```
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/sdk/log
                    │   old.txt   │              new.txt               │
                    │   sec/op    │   sec/op     vs base               │
SetAddAttributes-10   175.7n ± 3%   159.8n ± 4%  -9.08% (p=0.000 n=10)

                    │  old.txt   │            new.txt             │
                    │    B/op    │    B/op     vs base            │
SetAddAttributes-10   48.00 ± 0%   48.00 ± 0%  ~ (p=1.000 n=10) ¹
¹ all samples are equal

                    │  old.txt   │            new.txt             │
                    │ allocs/op  │ allocs/op   vs base            │
SetAddAttributes-10   1.000 ± 0%   1.000 ± 0%  ~ (p=1.000 n=10) ¹
¹ all samples are equal
```
2024-06-04 09:18:14 +02:00
Tyler Yahn
047df28b88
Guard rng in exemplar rand computation (#5456)
Fix #5455

The `math/rand.Rand` type is not safe for concurrent access. Concurrent
measurements, and therefore concurrent exemplar computation, are
allowed. Ensure this concurrent design does not lead to data races with
`rng`.
2024-06-03 11:11:20 +02:00
Tyler Yahn
baa8efe132
Document instrument name requirements (#5435)
Fix #5377

---------

Co-authored-by: Sam Xie <sam@samxie.me>
2024-05-30 13:59:58 -07:00