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Author SHA1 Message Date
Ijas d5f403cab5 sdk/resource: add WithContext variants for Default and Environment (#7808) (#8051)
## Description
Address issue #7808 by plumbing `context.Context` through
`resource.Environment` and `resource.Default`.

Currently, these functions hardcode `context.Background()`, which
prevents detectors (especially those that might perform network lookups
or OS calls) from respecting timeouts or cancellations provided by the
caller.

## Changes

- Adds `EnvironmentWithContext(ctx context.Context)` as a new public
function.
- Adds `DefaultWithContext(ctx context.Context)` as a new public
function.
- Maintains backward compatibility by making `Environment()` and
`Default()` thin wrappers around the new WithContext variants.

## Testing

- Added unit tests in `sdk/resource/resource_test.go` to verify the new
functions.
- Verified that all `sdk/resource` tests pass.
- Verified that make `golangci-lint` passes repository-wide.

Fixes #7808

---------

Co-authored-by: Damien Mathieu <42@dmathieu.com>
2026-03-17 09:35:03 +01:00
David Ashpole 206ac291d0 Fix race in the lastvalue aggregation where 0 could be observed (#8056)
This initializes the value of the gauge with the correct value before it
is stored in the map. We end up storing the same thing twice on the
first call, but that isn't a big deal performance-wise.

Discovered during
https://github.com/open-telemetry/opentelemetry-go/pull/8021
2026-03-16 09:30:51 -04:00
David Ashpole 4c89d3345a exphist: replace min, max, sum, and count with atomics (#8025)
This is the first PR towards a lockless fast-path for the exponential
histogram aggregation. It just replaces use of min, max, sum and counts
with atomic types.

You can see the full set of planned changes in
https://github.com/open-telemetry/opentelemetry-go/compare/main...dashpole:opentelemetry-go:lockless_exphist_ai.
The implementation is largely based on
https://github.com/open-telemetry/opentelemetry-go/pull/7535 (which I
implemented by hand), but with help from an AI to break it down into
smaller PRs, and simplify aspects of the design.

Part of https://github.com/open-telemetry/opentelemetry-go/issues/7796
2026-03-13 10:38:11 -04:00
David Ashpole 82d57cc8b6 Add tests for exponential histogram concurrent-safety edge-cases (#8024)
Part of https://github.com/open-telemetry/opentelemetry-go/issues/7796

Improve test coverage of the concurrent-safety of exponential histogram
aggregations. This adds two tests:

* ZeroValues, which checks that the handling of zero values is correct
in concurrent scenarios
* RescalingStress, which generates inputs that intentionally cause lots
of concurrent rescales.

The RescalingStress test inputs the same values into a serial version
and parallel version of the exponential histogram aggregation and
verifies that the output buckets match afterwards.

I used AI to identify where we were missing coverage, and to design and
help implement the tests. I've reviewed and modified the tests as
needed.
2026-03-13 08:58:28 -04:00
David Ashpole 65f85fc93a Improve aggregation concurrent safe tests (#8021)
I'm taking a stab at improving the ConcurrentSafe tests for aggregations
before taking on the lockless exponential histogram implementation
again.

Part of https://github.com/open-telemetry/opentelemetry-go/issues/7796

This PR includes a few improvements:

* All concurrent-safe tests now use 10 different attribute sets to make
sure we are testing concurrent increments that result in an overflow
(the cardinality limit of the test is 3).
* All concurrent-safe tests for floats now include decimal
valued-inputs.
* Improved the validation of the collected metrics:
    * Validate the total after multiple collects.
* Validate that increments are made to the correct bucket for histograms
* Validate that the overflow attribute set has the correct total value.

This uncovered an apparent race condition where the lastvalue
aggregation can collect a value of zero even when no zero-value is
recorded. I added a TODO, and will fix this in a follow-up.

I used AI to help me design and implement tests, but requested each of
the changes, and reviewed the output.

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2026-03-13 08:36:01 -04:00
David Ashpole f0294a3921 Add benchmarks for end-to-end metrics SDK usage (#7768)
### Objective

Part of https://github.com/open-telemetry/opentelemetry-go/issues/7743.
I need a benchmark that can demonstrate the performance of using our
API, SDK, and attributes packages together when following our
performance guide.
https://github.com/open-telemetry/opentelemetry-go/blob/main/CONTRIBUTING.md#attribute-and-option-allocation-management.

I settled on benchmarking three scenarios: "Precomputed", "Dynamic", and
"Naive".

In the "Precomputed" scenario, it is assumed that the attribute set
being measured against is known ahead of time, and that the
instrumentation author can enumerate all possible sets, and precompute
whatever they want, and keep references to it.

In the "Dynamic" scenario, it is assumed that the attribute set being
measured against is not known ahead of time, and that it is not feasible
to enumerate all possible attribute sets ahead of time. However, this
scenario still assumes bounded cardinality, as writing metrics with an
unbounded cardinality is not the intended use of the API. I had
originally written these benchmarks with varying overall cardinality,
but the cardinality does not impact the test results, as long as it is
reasonable and bounded (e.g. < 100,000).

In the "Naive" scenario, it is assumed the user uses the API in the
simplest, most ergonomic way. This is an attempt to measure the
"default" experience of our API + SDK that users get when they use it.

I also found that relative benchmark results did not change when
different levels of parallelism are used, so all benchmark results are
single-threaded.

### Results

```
goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/metric
cpu: Intel(R) Xeon(R) CPU @ 2.20GHz
                                                                          │   out.txt    │
                                                                          │    sec/op    │
EndToEndCounterAdd/NoFilter/Attributes/1/Precomputed/WithAttributeSet-24    59.47n ± 12%
EndToEndCounterAdd/NoFilter/Attributes/1/Precomputed/WithAttributes-24      54.50n ±  3%
EndToEndCounterAdd/NoFilter/Attributes/1/Dynamic/WithAttributeSet-24        164.3n ± 16%
EndToEndCounterAdd/NoFilter/Attributes/1/Dynamic/WithAttributes-24          219.5n ±  4%
EndToEndCounterAdd/NoFilter/Attributes/1/Naive/WithAttributes-24            268.9n ±  7%
EndToEndCounterAdd/NoFilter/Attributes/5/Precomputed/WithAttributeSet-24    51.78n ±  6%
EndToEndCounterAdd/NoFilter/Attributes/5/Precomputed/WithAttributes-24      52.95n ±  8%
EndToEndCounterAdd/NoFilter/Attributes/5/Dynamic/WithAttributeSet-24        434.9n ±  3%
EndToEndCounterAdd/NoFilter/Attributes/5/Dynamic/WithAttributes-24          646.0n ±  3%
EndToEndCounterAdd/NoFilter/Attributes/5/Naive/WithAttributes-24            802.3n ±  4%
EndToEndCounterAdd/NoFilter/Attributes/10/Precomputed/WithAttributeSet-24   52.00n ±  5%
EndToEndCounterAdd/NoFilter/Attributes/10/Precomputed/WithAttributes-24     51.88n ±  8%
EndToEndCounterAdd/NoFilter/Attributes/10/Dynamic/WithAttributeSet-24       815.9n ±  3%
EndToEndCounterAdd/NoFilter/Attributes/10/Dynamic/WithAttributes-24         1.202µ ±  3%
EndToEndCounterAdd/NoFilter/Attributes/10/Naive/WithAttributes-24           1.527µ ±  7%
EndToEndCounterAdd/Filtered/Attributes/1/Precomputed/WithAttributeSet-24    136.6n ±  5%
EndToEndCounterAdd/Filtered/Attributes/1/Precomputed/WithAttributes-24      138.4n ±  3%
EndToEndCounterAdd/Filtered/Attributes/1/Dynamic/WithAttributeSet-24        251.6n ±  5%
EndToEndCounterAdd/Filtered/Attributes/1/Dynamic/WithAttributes-24          314.7n ±  7%
EndToEndCounterAdd/Filtered/Attributes/1/Naive/WithAttributes-24            357.9n ±  6%
EndToEndCounterAdd/Filtered/Attributes/5/Precomputed/WithAttributeSet-24    499.7n ±  4%
EndToEndCounterAdd/Filtered/Attributes/5/Precomputed/WithAttributes-24      510.5n ±  5%
EndToEndCounterAdd/Filtered/Attributes/5/Dynamic/WithAttributeSet-24        987.1n ±  6%
EndToEndCounterAdd/Filtered/Attributes/5/Dynamic/WithAttributes-24          1.169µ ±  9%
EndToEndCounterAdd/Filtered/Attributes/5/Naive/WithAttributes-24            1.297µ ±  5%
EndToEndCounterAdd/Filtered/Attributes/10/Precomputed/WithAttributeSet-24   1.044µ ±  7%
EndToEndCounterAdd/Filtered/Attributes/10/Precomputed/WithAttributes-24     992.6n ±  7%
EndToEndCounterAdd/Filtered/Attributes/10/Dynamic/WithAttributeSet-24       1.838µ ±  6%
EndToEndCounterAdd/Filtered/Attributes/10/Dynamic/WithAttributes-24         2.258µ ±  4%
EndToEndCounterAdd/Filtered/Attributes/10/Naive/WithAttributes-24           2.553µ ±  6%
geomean                                                                     375.7n

                                                                          │    out.txt     │
                                                                          │      B/op      │
EndToEndCounterAdd/NoFilter/Attributes/1/Precomputed/WithAttributeSet-24      0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/1/Precomputed/WithAttributes-24        0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/1/Dynamic/WithAttributeSet-24          88.00 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/1/Dynamic/WithAttributes-24            152.0 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/1/Naive/WithAttributes-24              232.0 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Precomputed/WithAttributeSet-24      0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Precomputed/WithAttributes-24        0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Dynamic/WithAttributeSet-24          345.0 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Dynamic/WithAttributes-24            665.0 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Naive/WithAttributes-24             1000.0 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Precomputed/WithAttributeSet-24     0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Precomputed/WithAttributes-24       0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Dynamic/WithAttributeSet-24         730.0 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Dynamic/WithAttributes-24         1.401Ki ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Naive/WithAttributes-24           2.102Ki ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Precomputed/WithAttributeSet-24      64.00 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Precomputed/WithAttributes-24        64.00 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Dynamic/WithAttributeSet-24          152.0 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Dynamic/WithAttributes-24            216.0 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Naive/WithAttributes-24              296.0 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Precomputed/WithAttributeSet-24      576.0 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Precomputed/WithAttributes-24        576.0 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Dynamic/WithAttributeSet-24          922.0 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Dynamic/WithAttributes-24          1.213Ki ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Naive/WithAttributes-24            1.539Ki ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Precomputed/WithAttributeSet-24   1.312Ki ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Precomputed/WithAttributes-24     1.312Ki ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Dynamic/WithAttributeSet-24       2.027Ki ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Dynamic/WithAttributes-24         2.716Ki ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Naive/WithAttributes-24           3.414Ki ± 0%
geomean                                                                                  ¹
¹ summaries must be >0 to compute geomean

                                                                          │   out.txt    │
                                                                          │  allocs/op   │
EndToEndCounterAdd/NoFilter/Attributes/1/Precomputed/WithAttributeSet-24    0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/1/Precomputed/WithAttributes-24      0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/1/Dynamic/WithAttributeSet-24        2.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/1/Dynamic/WithAttributes-24          3.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/1/Naive/WithAttributes-24            5.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Precomputed/WithAttributeSet-24    0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Precomputed/WithAttributes-24      0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Dynamic/WithAttributeSet-24        2.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Dynamic/WithAttributes-24          3.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/5/Naive/WithAttributes-24            5.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Precomputed/WithAttributeSet-24   0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Precomputed/WithAttributes-24     0.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Dynamic/WithAttributeSet-24       2.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Dynamic/WithAttributes-24         3.000 ± 0%
EndToEndCounterAdd/NoFilter/Attributes/10/Naive/WithAttributes-24           5.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Precomputed/WithAttributeSet-24    1.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Precomputed/WithAttributes-24      1.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Dynamic/WithAttributeSet-24        3.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Dynamic/WithAttributes-24          4.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/1/Naive/WithAttributes-24            6.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Precomputed/WithAttributeSet-24    2.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Precomputed/WithAttributes-24      2.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Dynamic/WithAttributeSet-24        4.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Dynamic/WithAttributes-24          5.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/5/Naive/WithAttributes-24            7.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Precomputed/WithAttributeSet-24   2.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Precomputed/WithAttributes-24     2.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Dynamic/WithAttributeSet-24       4.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Dynamic/WithAttributes-24         5.000 ± 0%
EndToEndCounterAdd/Filtered/Attributes/10/Naive/WithAttributes-24           7.000 ± 0%
geomean                                                                                ¹
¹ summaries must be >0 to compute geomean
```

### Observations

* When the attributes are known ahead of time (Precomputed),
WithAttributes and WithAttributeSet have equal performance.
* When attributes are not known ahead of time (Dynamic), WithAttributes
is worse than WithAttributeSet (mostly 1 extra allocation).
* When an attribute filter is applied, the performance of the SDK
degrades significantly. In the Precomputed case with 10 attributes, the
performance goes from 50ns to 1000ns, and from 0 allocations to 2
allocations.
2026-03-12 13:06:36 -07:00
renovate[bot] 6d79ac3936 fix(deps): update golang.org/x (#8045)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) | Type |
Update |
|---|---|---|---|---|---|
| [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) |
[`v0.48.0` →
`v0.49.0`](https://cs.opensource.google/go/x/crypto/+/refs/tags/v0.48.0...refs/tags/v0.49.0)
|
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fcrypto/v0.49.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2fcrypto/v0.48.0/v0.49.0?slim=true)
| indirect | minor |
| [golang.org/x/mod](https://pkg.go.dev/golang.org/x/mod) | [`v0.33.0` →
`v0.34.0`](https://cs.opensource.google/go/x/mod/+/refs/tags/v0.33.0...refs/tags/v0.34.0)
|
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fmod/v0.34.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2fmod/v0.33.0/v0.34.0?slim=true)
| indirect | minor |
| [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) | [`v0.51.0` →
`v0.52.0`](https://cs.opensource.google/go/x/net/+/refs/tags/v0.51.0...refs/tags/v0.52.0)
|
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fnet/v0.52.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2fnet/v0.51.0/v0.52.0?slim=true)
| indirect | minor |
| [golang.org/x/telemetry](https://pkg.go.dev/golang.org/x/telemetry) |
`e526e8a` → `579e4da` |
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2ftelemetry/v0.0.0-20260311193753-579e4da9a98c?slim=true)
|
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| indirect | digest |
| [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) | [`v0.34.0`
→
`v0.35.0`](https://cs.opensource.google/go/x/text/+/refs/tags/v0.34.0...refs/tags/v0.35.0)
|
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2ftext/v0.35.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2ftext/v0.34.0/v0.35.0?slim=true)
| indirect | minor |
| [golang.org/x/tools](https://pkg.go.dev/golang.org/x/tools) |
[`v0.42.0` →
`v0.43.0`](https://cs.opensource.google/go/x/tools/+/refs/tags/v0.42.0...refs/tags/v0.43.0)
|
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2ftools/v0.43.0?slim=true)
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| require | minor |

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> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/5322) for more information.

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---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: dmathieu <damien.mathieu@elastic.co>
2026-03-12 15:40:07 +01:00
Ijas 88f8c10823 linting: add depguard rule to enforce semconv version (#8041)
### Description

This PR adds a `depguard` linter rule to
[.golangci.yml](file:///Users/ijasahammed/Documents/open_source/opentelemetry-go/.golangci.yml)
to enforce the use of the latest semantic convention version
(`v1.40.0`).

This rule ensures that:
- Any new code importing `otel/semconv` must use `v1.40.0`.
- The `semconv/` directory itself is excluded from this check to avoid
linting legacy definitions.
- The `zipkin exporter` is excluded from this check
- Updated `semconv` version to v1.40.0 in the
`sdk/log/logger_bench_test.go` test.

### Verification Results

I verified this change locally using the following steps:

1. **Full Linter Run**: Ran `make precommit` (which executes
`golangci-lint run`). It passed with **0 issues** across the entire
repository.
2. **Smoke Test**: Added a temporary import of
`go.opentelemetry.io/otel/semconv/v1.20.0` in trace.go. The linter
correctly reported the violation:
> `trace.go:7:2: import 'go.opentelemetry.io/otel/semconv/v1.20.0' is
not allowed from list 'semconv': Use
go.opentelemetry.io/otel/semconv/v1.40.0 instead. (depguard)`

This change is not performance-critical and does not affect the
library's runtime behavior.

### Checklist
- [x] Signed CLA
- [x] `make precommit` passes.
- [x] CHANGELOG.md updated. (Not required)

Fixes #7842

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
2026-03-12 11:31:45 +01:00
Mikhail Mazurskiy ddd2b0e398 fix(sdk/trace): return spec-compliant TraceIdRatioBased description (#8027)
Optimize performance when sampling is disabled - no need to calculate
fraction based on trace id (in `traceIDRatioSampler`) if fraction is
zero.

---------

Co-authored-by: David Ashpole <dashpole@google.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
2026-03-12 10:11:33 +01:00
Robert Pająk f4da59e651 attribute: change INVALID Type to EMPTY and mark INVALID as deprecated (#8038)
Fixes https://github.com/open-telemetry/opentelemetry-go/issues/7932

Noticeable comment from previous PR:
https://github.com/open-telemetry/opentelemetry-go/pull/7942#discussion_r2913179215

Print the empty value as empty string per
https://opentelemetry.io/docs/specs/otel/common/#empty-values
2026-03-12 09:43:04 +01:00
Mikhail Mazurskiy aff375ac62 chore(sdk/trace): join errors properly (#8030)
Co-authored-by: Robert Pająk <pellared@hotmail.com>
2026-03-11 17:27:43 +01:00
Alex Boten fabe66658f resource: add WithService detector option (#7642)
I was looking at implementing resource detection in otelconf and was
finding that all the detectors were implemented in a similar way except
for the service detector. Added the resource options in this PR for
feedback. Will add tests if the go approvers/maintainers support this
approach.

---------

Signed-off-by: alex boten <223565+codeboten@users.noreply.github.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
2026-03-10 10:22:06 +01:00
renovate[bot] 1f39f186db fix(deps): update golang.org/x (#8023)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [golang.org/x/sync](https://pkg.go.dev/golang.org/x/sync) | [`v0.19.0`
→
`v0.20.0`](https://cs.opensource.google/go/x/sync/+/refs/tags/v0.19.0...refs/tags/v0.20.0)
|
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fsync/v0.20.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2fsync/v0.19.0/v0.20.0?slim=true)
|
| [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) | [`v0.41.0` →
`v0.42.0`](https://cs.opensource.google/go/x/sys/+/refs/tags/v0.41.0...refs/tags/v0.42.0)
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Automerge - At any time (no schedule defined).

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
2026-03-09 09:48:14 +01:00
renovate[bot] 8b05173581 fix(deps): update module github.com/golangci/golangci-lint/v2 to v2.11.1 (#8011)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[github.com/golangci/golangci-lint/v2](https://redirect.github.com/golangci/golangci-lint)
| `v2.8.0` → `v2.11.1` |
![age](https://developer.mend.io/api/mc/badges/age/go/github.com%2fgolangci%2fgolangci-lint%2fv2/v2.11.1?slim=true)
|
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|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/5322) for more information.

---

### Release Notes

<details>
<summary>golangci/golangci-lint
(github.com/golangci/golangci-lint/v2)</summary>

###
[`v2.11.1`](https://redirect.github.com/golangci/golangci-lint/blob/HEAD/CHANGELOG.md#v2111)

[Compare
Source](https://redirect.github.com/golangci/golangci-lint/compare/v2.11.0...v2.11.1)

*Released on 2026-03-06*

Due to an error related to AUR, some artifacts of the v2.11.0 release
have not been published.

This release contains the same things as v2.11.0.

###
[`v2.11.0`](https://redirect.github.com/golangci/golangci-lint/blob/HEAD/CHANGELOG.md#v2110)

[Compare
Source](https://redirect.github.com/golangci/golangci-lint/compare/v2.10.1...v2.11.0)

*Released on 2026-03-06*

1. Linters new features or changes
- `errcheck`: from 1.9.0 to 1.10.0 (exclude `crypto/rand.Read` by
default)
- `gosec`: from 2.23.0 to 2.24.6 (new rules: `G113`, `G118`, `G119`,
`G120`, `G121`, `G122`, `G123`, `G408`, `G707`)
- `noctx`: from 0.4.0 to 0.5.0 (new detection:
`httptest.NewRequestWithContext`)
   - `prealloc`: from 1.0.2 to 1.1.0
- `revive`: from 1.14.0 to 1.15.0 (⚠️ Breaking change: package-related
checks moved from `var-naming` to a new rule `package-naming`)
2. Linters bug fixes
   - `gocognit`: from 1.2.0 to 1.2.1
   - `gosec`: from 2.24.6 to 2.24.7
   - `unqueryvet`: from 1.5.3 to 1.5.4

###
[`v2.10.1`](https://redirect.github.com/golangci/golangci-lint/blob/HEAD/CHANGELOG.md#v2101)

[Compare
Source](https://redirect.github.com/golangci/golangci-lint/compare/v2.10.0...v2.10.1)

*Released on 2026-02-17*

1. Fixes
   - buildssa panic

###
[`v2.10.0`](https://redirect.github.com/golangci/golangci-lint/blob/HEAD/CHANGELOG.md#v2100)

[Compare
Source](https://redirect.github.com/golangci/golangci-lint/compare/v2.9.0...v2.10.0)

*Released on 2026-02-17*

1. Linters new features or changes
   - `ginkgolinter`: from 0.22.0 to 0.23.0
- `gosec`: from 2.22.11 to 2.23.0 (new rules: `G117`, `G602`, `G701`,
`G702`, `G703`, `G704`, `G705`, `G706`)
   - `staticcheck`: from 0.6.1 to 0.7.0
2. Linters bug fixes
   - `godoclint`: from 0.11.1 to 0.11.2

###
[`v2.9.0`](https://redirect.github.com/golangci/golangci-lint/blob/HEAD/CHANGELOG.md#v290)

[Compare
Source](https://redirect.github.com/golangci/golangci-lint/compare/v2.8.0...v2.9.0)

*Released on 2026-02-10*

1. Enhancements
   - 🎉 go1.26 support
2. Linters new features or changes
- `arangolint`: from 0.3.1 to 0.4.0 (new rule: detect potential query
injections)
   - `ginkgolinter`: from 0.21.2 to 0.22.0 (support for wrappers)
   - `golines`: from 0.14.0 to 0.15.0
   - `misspell`: from 0.7.0 to 0.8.0
- `unqueryvet`: from 1.4.0 to 1.5.3 (new options: `check-n1`,
`check-sql-injection`, `check-tx-leaks`, `allow`, `custom-rules`)
   - `wsl`: from 5.3.0 to 5.6.0 (new rule: `after-block`)
3. Linters bug fixes
   - `modernize`: from 0.41.0 to 0.42.0
   - `prealloc`: from 1.0.1 to 1.0.2
   - `protogetter`: from 0.3.18 to 0.3.20
4. Misc.
   - Log information about files when configuration verification
   - Emit an error when no linters enabled
   - Do not collect VCS information when loading code

</details>

---

### Configuration

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🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My41Ni4wIiwidXBkYXRlZEluVmVyIjoiNDMuNTkuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiU2tpcCBDaGFuZ2Vsb2ciLCJkZXBlbmRlbmNpZXMiXX0=-->

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Tyler Yahn <codingalias@gmail.com>
2026-03-06 17:09:22 -08:00
Robert Pająk a3941ff595 Release v1.42.0/v0.64.0/v0.18.0/v0.0.16 (#8006)
### Added

- Add `go.opentelemetry.io/otel/semconv/v1.40.0` package.
The package contains semantic conventions from the `v1.40.0` version of
the OpenTelemetry Semantic Conventions.
See the [migration documentation](./semconv/v1.40.0/MIGRATION.md) for
information on how to upgrade from
`go.opentelemetry.io/otel/semconv/v1.39.0`. (#7985)
- Add `Err` and `SetErr` on `Record` in `go.opentelemetry.io/otel/log`
to attach an error and set record exception attributes in
`go.opentelemetry.io/otel/log/sdk`. (#7924)

### Changed

- `TracerProvider.ForceFlush` in `go.opentelemetry.io/otel/sdk/trace`
joins errors together and continues iteration through SpanProcessors as
opposed to returning the first encountered error without attempting
exports on subsequent SpanProcessors. (#7856)

### Fixed

- Fix missing `request.GetBody` in
`go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp` to
correctly handle HTTP2 GOAWAY frame. (#7931)
- Fix semconv v1.39.0 generated metric helpers skipping required
attributes when extra attributes were empty. (#7964)
- Preserve W3C TraceFlags bitmask (including the random Trace ID flag)
during trace context extraction and injection in
`go.opentelemetry.io/otel/propagation`. (#7834)

### Removed

- Drop support for [Go 1.24]. (#7984)
2026-03-06 20:13:23 +01:00
Israel Blancas c9d20155fc log: add error field to Record and make SDK to emit exception attributes (#7924)
Fixes #7923


```sh
$ go test -run=^$ -bench=BenchmarkLoggerEmitExceptionAttributes -benchmem -count=5 -benchtime=500ms -cpu=1
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/sdk/log
cpu: Apple M4 Pro
BenchmarkLoggerSetErrAndEmit                 	  628162	      1023 ns/op	    5371 B/op	       1 allocs/op
BenchmarkLoggerSetErrAndEmit                 	  663955	       863.3 ns/op	    5105 B/op	       1 allocs/op
BenchmarkLoggerSetErrAndEmit                 	  653888	      1067 ns/op	    5177 B/op	       1 allocs/op
BenchmarkLoggerSetErrAndEmit                 	  716438	       824.8 ns/op	    4764 B/op	       1 allocs/op
BenchmarkLoggerSetErrAndEmit                 	  746902	       999.2 ns/op	    5630 B/op	       1 allocs/op
BenchmarkLoggerSetExceptionAttributesAndEmit 	  650696	      1042 ns/op	    5200 B/op	       1 allocs/op
BenchmarkLoggerSetExceptionAttributesAndEmit 	  574962	       980.7 ns/op	    4743 B/op	       1 allocs/op
BenchmarkLoggerSetExceptionAttributesAndEmit 	  536736	       989.2 ns/op	    5049 B/op	       1 allocs/op
BenchmarkLoggerSetExceptionAttributesAndEmit 	  558511	      1190 ns/op	    4870 B/op	       1 allocs/op
BenchmarkLoggerSetExceptionAttributesAndEmit 	  669452	       978.8 ns/op	    5067 B/op	       1 allocs/op
PASS
ok  	go.opentelemetry.io/otel/sdk/log	6.994s
```

TODO after merged:
-
https://github.com/open-telemetry/opentelemetry-go/pull/7924#discussion_r2832906451

---------

Signed-off-by: Israel Blancas <iblancasa@gmail.com>
Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
2026-03-05 10:24:05 +01:00
sawamurataxman fdd1320c39 TracerProvider ForceFlush() Error Fix (#7856)
Previously upon a SpanProcessor's ForceFlush returning an error, it
would return that error and not attempt to flush subsequent
SpanProcessors. Now when an error is encountered, it will Join the new
error with the existing errors and continue iterating through the
SpanProcessors and return the consolidated error at the end of
iteration. This is in line with the workflow found in LoggerProvider's
ForceFlush.

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
2026-03-05 08:36:30 +01:00
Oleksandr Redko 60161f97c4 refactor: replace uint64 and int32 with atomic types in tests (#7941)
Because [atomic types](https://go.dev/doc/go1.19#atomic_types) are
easier to use.
2026-03-04 17:20:31 +01:00
Tyler Yahn 5b5c2c5d6d Upgrade to semconv/v1.40.0 (#7991) 2026-03-04 12:13:40 +01:00
renovate[bot] a18614cbc2 chore(deps): update module github.com/securego/gosec/v2 to v2.24.7 (#7988)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[github.com/securego/gosec/v2](https://redirect.github.com/securego/gosec)
| `v2.23.0` → `v2.24.7` |
![age](https://developer.mend.io/api/mc/badges/age/go/github.com%2fsecurego%2fgosec%2fv2/v2.24.7?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/github.com%2fsecurego%2fgosec%2fv2/v2.23.0/v2.24.7?slim=true)
|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/5322) for more information.

---

### Release Notes

<details>
<summary>securego/gosec (github.com/securego/gosec/v2)</summary>

###
[`v2.24.7`](https://redirect.github.com/securego/gosec/releases/tag/v2.24.7)

[Compare
Source](https://redirect.github.com/securego/gosec/compare/v2.24.6...v2.24.7)

#### Changelog

-
[`bb17e42`](https://redirect.github.com/securego/gosec/commit/bb17e422fc34bf4c0a2e5cab9d07dc45a68c040c)
Ignore nosec comments in action integration workflow to generate some
warnings
([#&#8203;1573](https://redirect.github.com/securego/gosec/issues/1573))
-
[`e1502ad`](https://redirect.github.com/securego/gosec/commit/e1502ad21653d1c6717e33f1221c3ce2d5c8581f)
Add a workflow for action integration test
([#&#8203;1571](https://redirect.github.com/securego/gosec/issues/1571))
-
[`f8691bd`](https://redirect.github.com/securego/gosec/commit/f8691bd77bab5430ccb538e6f253275e82577afc)
fix(sarif): avoid invalid null relationships in SARIF output
([#&#8203;1569](https://redirect.github.com/securego/gosec/issues/1569))
-
[`ade1d0e`](https://redirect.github.com/securego/gosec/commit/ade1d0e0a04ec8ae98da98614d42524621d40df2)
chore: migrate gosec container image references to GHCR
([#&#8203;1567](https://redirect.github.com/securego/gosec/issues/1567))

###
[`v2.24.6`](https://redirect.github.com/securego/gosec/releases/tag/v2.24.6)

[Compare
Source](https://redirect.github.com/securego/gosec/compare/v2.24.5...v2.24.6)

#### Changelog

-
[`88835e8`](https://redirect.github.com/securego/gosec/commit/88835e86bba381290c2f60a1c73610995b1502eb)
Update gorelease to use the latest cosign bundle argument
([#&#8203;1565](https://redirect.github.com/securego/gosec/issues/1565))

###
[`v2.24.5`](https://redirect.github.com/securego/gosec/compare/v2.24.4...v2.24.5)

[Compare
Source](https://redirect.github.com/securego/gosec/compare/v2.24.4...v2.24.5)

###
[`v2.24.4`](https://redirect.github.com/securego/gosec/compare/v2.24.3...v2.24.4)

[Compare
Source](https://redirect.github.com/securego/gosec/compare/v2.24.3...v2.24.4)

###
[`v2.24.3`](https://redirect.github.com/securego/gosec/compare/v2.24.2...v2.24.3)

[Compare
Source](https://redirect.github.com/securego/gosec/compare/v2.24.2...v2.24.3)

###
[`v2.24.2`](https://redirect.github.com/securego/gosec/compare/v2.24.1...v2.24.2)

[Compare
Source](https://redirect.github.com/securego/gosec/compare/v2.24.1...v2.24.2)

###
[`v2.24.1`](https://redirect.github.com/securego/gosec/compare/v2.24.0...v2.24.1)

[Compare
Source](https://redirect.github.com/securego/gosec/compare/v2.24.0...v2.24.1)

###
[`v2.24.0`](https://redirect.github.com/securego/gosec/releases/tag/v2.24.0)

[Compare
Source](https://redirect.github.com/securego/gosec/compare/v2.23.0...v2.24.0)

#### Changelog

-
[`271492b`](https://redirect.github.com/securego/gosec/commit/271492bcd930ef72dfb9d00e5bb9544b3b407fb5)
fix: G704 false positive on const URL
([#&#8203;1551](https://redirect.github.com/securego/gosec/issues/1551))
-
[`1341aea`](https://redirect.github.com/securego/gosec/commit/1341aeadb4c334014c4834c745344edb9dcf85b0)
fix(G705): eliminate false positive for non-HTTP io.Writer
([#&#8203;1550](https://redirect.github.com/securego/gosec/issues/1550))
-
[`f2262c8`](https://redirect.github.com/securego/gosec/commit/f2262c88ffdfc9eb7be8444db19caa17cc71810f)
G120: avoid false positive when MaxBytesReader is applied in middleware
([#&#8203;1547](https://redirect.github.com/securego/gosec/issues/1547))
-
[`5b580c7`](https://redirect.github.com/securego/gosec/commit/5b580c76e4714fa553b2ceb8169a071e45bf6428)
Fix G602 regression coverage for issue
[#&#8203;1545](https://redirect.github.com/securego/gosec/issues/1545)
and stabilize G117 TOML test dependency
([#&#8203;1546](https://redirect.github.com/securego/gosec/issues/1546))
-
[`eba2d15`](https://redirect.github.com/securego/gosec/commit/eba2d1582b13e37d5b6c991b643827bc60e58156)
taint: skip `context.Context` arguments during taint propagation to fix
false positives
([#&#8203;1543](https://redirect.github.com/securego/gosec/issues/1543))
-
[`a6381c1`](https://redirect.github.com/securego/gosec/commit/a6381c1e2fe9a9a33ef105c76bea3191402ea4b3)
test: add missing rules to formatter report tests
([#&#8203;1540](https://redirect.github.com/securego/gosec/issues/1540))
-
[`fea9725`](https://redirect.github.com/securego/gosec/commit/fea9725934065d3dd5c96352f89f75d117ac12f6)
chore(deps): update all dependencies
([#&#8203;1541](https://redirect.github.com/securego/gosec/issues/1541))
-
[`f3e2fac`](https://redirect.github.com/securego/gosec/commit/f3e2fac4d58b7eca54307cd40ce2a836a12e4d95)
Regenrate the TLS config rule
([#&#8203;1539](https://redirect.github.com/securego/gosec/issues/1539))
-
[`200461f`](https://redirect.github.com/securego/gosec/commit/200461fcf74ed836305bf95f72568c20925730c5)
Improve documentation
([#&#8203;1538](https://redirect.github.com/securego/gosec/issues/1538))
-
[`078a62a`](https://redirect.github.com/securego/gosec/commit/078a62afc3331206fec1cd9a03637983ec4f9fc8)
Expand analyzer-core test coverage for orchestration, go/analysis
adapter logic, and taint integration
([#&#8203;1537](https://redirect.github.com/securego/gosec/issues/1537))
-
[`ffdc620`](https://redirect.github.com/securego/gosec/commit/ffdc6205c82278cee0b62923814141923794219e)
Add unit tests for CLI orchestration, TLS config generation, and SSA
cache behavior
([#&#8203;1536](https://redirect.github.com/securego/gosec/issues/1536))
-
[`c13a486`](https://redirect.github.com/securego/gosec/commit/c13a48626bc160ef1caa293679044b5667d4d8ef)
Add G707 taint analyzer for SMTP command/header injection
([#&#8203;1535](https://redirect.github.com/securego/gosec/issues/1535))
-
[`f61ed31`](https://redirect.github.com/securego/gosec/commit/f61ed314c2467116ec3a5126150cb2b29a623406)
Add G123 analyzer for tls.VerifyPeerCertificate resumption bypass risk
([#&#8203;1534](https://redirect.github.com/securego/gosec/issues/1534))
-
[`b568aa1`](https://redirect.github.com/securego/gosec/commit/b568aa1445e110ed12abe5c2433b3cfbcd0a5935)
Add G122 SSA analyzer for filepath.Walk/WalkDir symlink TOCTOU race
risks
([#&#8203;1532](https://redirect.github.com/securego/gosec/issues/1532))
-
[`1735e5a`](https://redirect.github.com/securego/gosec/commit/1735e5a9acd155702b8c6137d323df886c0252b5)
fix(G602): avoid false positives for range-over-array indexing
([#&#8203;1531](https://redirect.github.com/securego/gosec/issues/1531))
-
[`caf93d0`](https://redirect.github.com/securego/gosec/commit/caf93d07f10ef7d07006011b17f1d9bd218b5a9d)
Improve taint analyzer performance with shared SSA cache, parallel
analyzer execution, and CI regression guard
([#&#8203;1530](https://redirect.github.com/securego/gosec/issues/1530))
-
[`bd11fbe`](https://redirect.github.com/securego/gosec/commit/bd11fbe2bacb0abf1e541df8b6ec6b040bbe2723)
fix: taint analysis false positives with G703,G705
([#&#8203;1522](https://redirect.github.com/securego/gosec/issues/1522))
-
[`e34e8dd`](https://redirect.github.com/securego/gosec/commit/e34e8dd8e880694cfa801d79977e2d9973df3fa1)
Extend the G117 rule to cover other types of serialization such as
yaml/xml/toml
([#&#8203;1529](https://redirect.github.com/securego/gosec/issues/1529))
-
[`b940702`](https://redirect.github.com/securego/gosec/commit/b940702d5e385d1a68def10326b1658e780655fe)
Fix the G117 rule to take the JSON serialization into account
([#&#8203;1528](https://redirect.github.com/securego/gosec/issues/1528))
-
[`4f84627`](https://redirect.github.com/securego/gosec/commit/4f846273804abaf7e040f77b26bf2866336e8af9)
(docs) fix justification format
([#&#8203;1524](https://redirect.github.com/securego/gosec/issues/1524))
-
[`36ba72b`](https://redirect.github.com/securego/gosec/commit/36ba72bb7f91306f5210a821f409696c03dcbf2b)
Add G121 analyzer for unsafe CORS bypass patterns in
CrossOriginProtection
([#&#8203;1521](https://redirect.github.com/securego/gosec/issues/1521))
-
[`238f982`](https://redirect.github.com/securego/gosec/commit/238f9823256b1c4a6d7b0ccd7fa0f2ce1123c820)
Add G120 SSA analyzer for unbounded form parsing in HTTP handlers
([#&#8203;1520](https://redirect.github.com/securego/gosec/issues/1520))
-
[`89cde27`](https://redirect.github.com/securego/gosec/commit/89cde277b5e2b4a5dc47eb710911c51a0cb33b63)
Add G119 analyzer for unsafe redirect header propagation in
CheckRedirect callbacks
([#&#8203;1519](https://redirect.github.com/securego/gosec/issues/1519))
-
[`14fdd9c`](https://redirect.github.com/securego/gosec/commit/14fdd9cb07c02ab1506fcc336f49c84bf27a5c2d)
Fix G115 false positives and negatives (Issue
[#&#8203;1501](https://redirect.github.com/securego/gosec/issues/1501))
([#&#8203;1518](https://redirect.github.com/securego/gosec/issues/1518))
-
[`cec54ec`](https://redirect.github.com/securego/gosec/commit/cec54ec685eda3083e2ab1adf72b6b7ec6cfdb6e)
chore(deps): update all dependencies
([#&#8203;1517](https://redirect.github.com/securego/gosec/issues/1517))
-
[`2b2077e`](https://redirect.github.com/securego/gosec/commit/2b2077e921b56c7ce6545cccceea0556ff8d5d91)
Add G118 SSA analyzer for context propagation failures that can cause
goroutine/resource leaks
([#&#8203;1516](https://redirect.github.com/securego/gosec/issues/1516))
-
[`a7666f3`](https://redirect.github.com/securego/gosec/commit/a7666f3c70c94d07dfb03e81613fed34bccc89ae)
Add G113: Detect HTTP Request Smuggling via conflicting headers
(CVE-2025-22891, CWE-444)
([#&#8203;1515](https://redirect.github.com/securego/gosec/issues/1515))
-
[`47f8b52`](https://redirect.github.com/securego/gosec/commit/47f8b52fb8700c7ba017ffcc0ea6a32c83e33115)
Add G408: SSH PublicKeyCallback Authentication Bypass Analyzer
([#&#8203;1513](https://redirect.github.com/securego/gosec/issues/1513))
-
[`4f1f362`](https://redirect.github.com/securego/gosec/commit/4f1f362671654660f7145c3c8655ffeaed037d55)
Add more unit tests to improve coverage
([#&#8203;1512](https://redirect.github.com/securego/gosec/issues/1512))
-
[`9344582`](https://redirect.github.com/securego/gosec/commit/9344582ee4bd87b8fa5bc2e483d90fa661f8aa71)
Improve test coverage in various areas
([#&#8203;1511](https://redirect.github.com/securego/gosec/issues/1511))
-
[`8d1b2c6`](https://redirect.github.com/securego/gosec/commit/8d1b2c63ae44e315fb0232813e535891ff0568fc)
Imprve the test coverage
([#&#8203;1510](https://redirect.github.com/securego/gosec/issues/1510))
-
[`993c1c4`](https://redirect.github.com/securego/gosec/commit/993c1c4da2d4426f7567591e23f53ee9f613d07c)
Fix incorrect detection of fixed iv in G407
([#&#8203;1509](https://redirect.github.com/securego/gosec/issues/1509))
-
[`8668b74`](https://redirect.github.com/securego/gosec/commit/8668b748925d8995cf7712d22bde62cbc96f2304)
Add support for go 1.26.x and removed support for go 1.24.x
([#&#8203;1508](https://redirect.github.com/securego/gosec/issues/1508))
-
[`514225c`](https://redirect.github.com/securego/gosec/commit/514225c8cb01a6bab714db1dd557aeb0d7ab9dc9)
Fix the sonar report to follow the latest schema
([#&#8203;1507](https://redirect.github.com/securego/gosec/issues/1507))
-
[`000384e`](https://redirect.github.com/securego/gosec/commit/000384e510a84a1e2a1118e0fbc56518d290113d)
fix: broken taint analysis causing false positives
([#&#8203;1506](https://redirect.github.com/securego/gosec/issues/1506))
-
[`616192c`](https://redirect.github.com/securego/gosec/commit/616192c9d92792998e2ff38530c080cd0fe293a8)
fix: panic on float constants in overflow analyzer
([#&#8203;1505](https://redirect.github.com/securego/gosec/issues/1505))
-
[`79956a3`](https://redirect.github.com/securego/gosec/commit/79956a3b4cdedc9a4cde5f567c57fc8b367448cf)
fix: panic when scanning multi-module repos from root
([#&#8203;1504](https://redirect.github.com/securego/gosec/issues/1504))
-
[`5736e8b`](https://redirect.github.com/securego/gosec/commit/5736e8b88b6ca97fc7e09ef1bf24b205ab35fd9c)
fix: G602 false positive for array element access
([#&#8203;1499](https://redirect.github.com/securego/gosec/issues/1499))
-
[`1b7e1e9`](https://redirect.github.com/securego/gosec/commit/1b7e1e94bc2077fc1adccfc1358399fad2958d5a)
Update gosec to version v2.23.0 in the Github action
([#&#8203;1496](https://redirect.github.com/securego/gosec/issues/1496))

</details>

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Tyler Yahn <codingalias@gmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2026-03-03 11:59:53 -08:00
Tyler Yahn d5febb955e Drop support for Go 1.24 (#7984) 2026-03-02 22:25:05 +01:00
Robert Pająk 4575a9774d Release 1.41.0/0.63.0/0.17.0/0.0.15 (#7977)
This release is the last to support [Go 1.24].
The next release will require at least [Go 1.25].

### Added

- Support testing of [Go 1.26]. (#7902)

### Fixed

- Update `Baggage` in `go.opentelemetry.io/otel/propagation` and `Parse`
and `New` in `go.opentelemetry.io/otel/baggage` to comply with W3C
Baggage specification limits.
`New` and `Parse` now return partial baggage along with an error when
limits are exceeded.
Errors from baggage extraction are reported to the global error handler.
(#7880)

[Go 1.26]: https://go.dev/doc/go1.26
[Go 1.25]: https://go.dev/doc/go1.25
[Go 1.24]: https://go.dev/doc/go1.24
2026-03-02 19:39:57 +01:00
renovate[bot] 0f1a22484e chore(deps): update module github.com/securego/gosec/v2 to v2.23.0 (#7899) 2026-02-28 21:51:27 +01:00
renovate[bot] dbeb92241a fix(deps): update module golang.org/x/sys to v0.41.0 (#7885)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) | [`v0.40.0` →
`v0.41.0`](https://cs.opensource.google/go/x/sys/+/refs/tags/v0.40.0...refs/tags/v0.41.0)
|
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fsys/v0.41.0?slim=true)
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2026-02-09 09:16:59 +01:00
Nesterov Yehor e0ad47f3fe sdk/log/observ: guard LogProcessed with Enabled (#7848)
Guards SLP.LogProcessed with processed.Enabled(ctx) to avoid building
metric
options/attributes when the processed counter is disabled.

BenchmarkSLP (noop MeterProvider):

LogProcessedWithError: ~106 ns/op, 232 B/op, 3 allocs/op -> ~0.46 ns/op,
0 B/op, 0 allocs/op
No behavior change when enabled; existing tests cover enabled path.
I don't believe this is a "notable" change, so doesn't need a CHANGELOG
entry.
Issue: #7800

Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2026-02-03 13:43:20 -08:00
Tyler Yahn a3a5317c5c Release v1.40.0 (#7859)
### Added

- Add `Enabled` method to all synchronous instrument interfaces
(`Float64Counter`, `Float64UpDownCounter`, `Float64Histogram`,
`Float64Gauge`, `Int64Counter`, `Int64UpDownCounter`, `Int64Histogram`,
`Int64Gauge`,) in `go.opentelemetry.io/otel/metric`. This stabilizes the
synchronous instrument enabled feature, allowing users to check if an
instrument will process measurements before performing computationally
expensive operations. (#7763)
- Add `AlwaysRecord` sampler in `go.opentelemetry.io/otel/sdk/trace`.
(#7724)
- Add `go.opentelemetry.io/otel/semconv/v1.39.0` package. The package
contains semantic conventions from the `v1.39.0` version of the
OpenTelemetry Semantic Conventions. See the [migration
documentation](https://github.com/open-telemetry/opentelemetry-go/blob/298cbedf256b7a9ab3c21e41fc5e3e6d6e4e94aa/semconv/v1.39.0/MIGRATION.md)
for information on how to upgrade from
`go.opentelemetry.io/otel/semconv/v1.38.0.` (#7783, #7789)

### Changed

- `Exporter` in `go.opentelemetry.io/otel/exporter/prometheus` ignores
metrics with the scope `go.opentelemetry.io/contrib/bridges/prometheus`.
This prevents scrape failures when the Prometheus exporter is
misconfigured to get data from the Prometheus bridge. (#7688)
- Improve performance of concurrent histogram measurements in
`go.opentelemetry.io/otel/sdk/metric`. (#7474)
- Add experimental observability metrics in
`go.opentelemetry.io/otel/exporters/stdout/stdoutmetric`. (#7492)
- Improve the concurrent performance of `HistogramReservoir` in
`go.opentelemetry.io/otel/sdk/metric/exemplar` by 4x. (#7443)
- Improve performance of concurrent synchronous gauge measurements in
`go.opentelemetry.io/otel/sdk/metric`. (#7478)
- Improve performance of concurrent exponential histogram measurements
in `go.opentelemetry.io/otel/sdk/metric`. (#7702)
- Improve the concurrent performance of `FixedSizeReservoir` in
`go.opentelemetry.io/otel/sdk/metric/exemplar`. (#7447)
- The `rpc.grpc.status_code` attribute in the experimental metrics
emitted from
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc` is
replaced with the `rpc.response.status_code` attribute to align with the
semantic conventions. (#7854)
- The `rpc.grpc.status_code` attribute in the experimental metrics
emitted from
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc` is
replaced with the `rpc.response.status_code` attribute to align with the
semantic conventions. (#7854)

### Fixed

- Fix bad log message when key-value pairs are dropped because of key
duplication in `go.opentelemetry.io/otel/sdk/log`. (#7662)
- Fix `DroppedAttributes` on `Record` in
`go.opentelemetry.io/otel/sdk/log` to not count the non-attribute
key-value pairs dropped because of key duplication. (#7662)
- Fix `SetAttributes` on `Record` in `go.opentelemetry.io/otel/sdk/log`
to not log that attributes are dropped when they are actually not
dropped. (#7662)
- `WithHostID` detector in `go.opentelemetry.io/otel/sdk/resource` to
use full path for `ioreg` command on Darwin (macOS). (#7818)
- Fix missing `request.GetBody` in
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp` to
correctly handle HTTP2 GOAWAY frame. (#7794)

### Deprecated

- Deprecate `go.opentelemetry.io/otel/exporters/zipkin`. For more
information, see the [OTel blog post deprecating the Zipkin
exporter](https://opentelemetry.io/blog/2025/deprecating-zipkin-exporters/).
(#7670)

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2026-02-02 09:46:33 -08:00
Oleksandr Redko 3264bf171b refactor: modernize code (#7850)
Enable the
[`modernize`](https://golangci-lint.run/docs/linters/configuration/#modernize)
linter in the golangci-lint configuration and fix the reported issues by
running `golangci-lint run --enable-only modernize --fix`. The
`modernize` linter is internally the same as [gopls
modernize](https://pkg.go.dev/golang.org/x/tools/go/analysis/passes/modernize).

Similar to #7089.
2026-01-30 18:15:17 +01:00
Flc゛ 82bf2f87b4 fix(x): correct source filename in generated test files (#7766)
ref:
https://github.com/open-telemetry/opentelemetry-go/pull/7735#discussion_r2667558812
2026-01-26 19:18:33 -08:00
David Ashpole 714ca7c32e Optimize fixedsize reservoir (#7447)
~Depends on #7441, #7443~

This improves the concurrent performance of the fixed size reservoir's
Offer function by 4x (i.e. 75% reduction). This improves the performance
of Measure() for fixed-size reservoirs by 60% overall.

Accomplish this by:

* using a single atomic for count and next. This assumes that both can
fit in a uint32.
* only use a lock to guard changing `w` and `next` together.

Offer benchmarks:
```
                           │   main.txt   │           fixedsize.txt            │
                           │    sec/op    │   sec/op     vs base               │
FixedSizeReservoirOffer-24   185.25n ± 4%   45.58n ± 1%  -75.40% (p=0.002 n=6)
```

Measure benchmarks:
```
                                                                          │   main.txt   │            fixedsize.txt            │
                                                                          │    sec/op    │    sec/op     vs base               │
SyncMeasure/NoView/ExemplarsEnabled/Int64Counter/Attributes/0-24            175.45n ± 6%   67.01n ±  9%  -61.81% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Int64Counter/Attributes/1-24            170.25n ± 1%   69.82n ±  6%  -58.99% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Int64Counter/Attributes/10-24           167.40n ± 2%   64.52n ± 10%  -61.46% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Float64Counter/Attributes/0-24          173.55n ± 0%   69.17n ± 12%  -60.14% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Float64Counter/Attributes/1-24          169.50n ± 1%   68.55n ±  5%  -59.56% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Float64Counter/Attributes/10-24         166.95n ± 1%   65.82n ±  6%  -60.58% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Int64UpDownCounter/Attributes/0-24      168.85n ± 1%   67.99n ± 11%  -59.73% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Int64UpDownCounter/Attributes/1-24      173.50n ± 1%   66.69n ±  2%  -61.56% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Int64UpDownCounter/Attributes/10-24     171.30n ± 5%   67.73n ±  8%  -60.46% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Float64UpDownCounter/Attributes/0-24    168.90n ± 2%   67.69n ±  9%  -59.92% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Float64UpDownCounter/Attributes/1-24    173.35n ± 2%   68.25n ±  9%  -60.63% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Float64UpDownCounter/Attributes/10-24   172.95n ± 2%   70.90n ±  7%  -59.01% (p=0.002 n=6)
geomean                                                                      171.0n        67.83n        -60.33%
```

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Robert Pająk <pellared@hotmail.com>
2026-01-23 09:27:43 -05:00
Robert Pająk d45961bcda resource: specify full path for ioreg command in Darwin host ID reader (#7818)
Use full path when calling `ioreg` to mitigate potential malicious code
execution in case of [Path
Interception](https://attack.mitre.org/techniques/T1574/007/).

Note that path interception typically requires the attacker to influence
the environment or place a malicious executable earlier in $PATH, which,
in this context, generally implies the script itself would need to be
introduced/uploaded (or otherwise placed/executed) in the target
environment for the attacker’s substitute `ioreg` to be reached during
execution.

Reference:
- https://cwe.mitre.org/data/definitions/426.html
2026-01-21 18:33:00 +01:00
Saharsh Tibrewala 61f0e4855c Bump semconv from v1.37.0 to v1.39.0 (#7789)
Fixes #7788

---------

Co-authored-by: Damien Mathieu <42@dmathieu.com>
2026-01-21 10:42:41 +01:00
Rodrigo Mecheri f98af48bcc sdk/log: fix "limit reached" logging and Record.DroppedAttributes (#7662)
Fixes: #6983

Enhance logging and error reporting in the log record
attribute handling code, specifically around dropped attributes and
duplicate key-value pairs. The main focus is to provide clearer warnings
when key-value pairs are dropped due to duplication, and to ensure
warnings are only logged when actual drops occur.

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
2026-01-13 14:43:36 +01:00
Saharsh Tibrewala b9920822c3 Add TestMergeIdempotent and TestEquivalentStability tests (#7764)
Verifies that Resource.Equivalent() and Resource.Equal() are independent
of attribute insertion order, ensuring stable equality semantics and
safe use as map keys.Ensures that merging a resource with itself is a
no-op, preserving both attributes and schema URL

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
2026-01-13 09:59:32 +01:00
Robert Pająk 7706e21e4a metric: add Enabled method to synchronous instruments (#7763)
Fixes https://github.com/open-telemetry/opentelemetry-go/issues/7681
2026-01-12 16:21:49 +01:00
Vitor Vasconcellos 7e1ff96f6c sdk/trace: Add AlwaysRecord sampler (#7724)
### Description

- Add `AlwaysRecord` sampler to `sdk/trace`.
 
### Related issue

Closes #7714.

---------

Signed-off-by: Vitor Vasconcellos <vitor.vasconcellos@mercadolivre.com>
Co-authored-by: Flc゛ <i@flc.io>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
2026-01-12 14:57:31 +01:00
renovate[bot] 8b00c5fa9c fix(deps): update module golang.org/x/sys to v0.40.0 (#7761)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) | [`v0.39.0` →
`v0.40.0`](https://cs.opensource.google/go/x/sys/+/refs/tags/v0.39.0...refs/tags/v0.40.0)
|
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fsys/v0.40.0?slim=true)
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2026-01-08 13:46:16 +01:00
renovate[bot] 594a13d31e fix(deps): update module github.com/golangci/golangci-lint/v2 to v2.8.0 (#7758)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[github.com/golangci/golangci-lint/v2](https://redirect.github.com/golangci/golangci-lint)
| `v2.7.2` → `v2.8.0` |
![age](https://developer.mend.io/api/mc/badges/age/go/github.com%2fgolangci%2fgolangci-lint%2fv2/v2.8.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/github.com%2fgolangci%2fgolangci-lint%2fv2/v2.7.2/v2.8.0?slim=true)
|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>golangci/golangci-lint
(github.com/golangci/golangci-lint/v2)</summary>

###
[`v2.8.0`](https://redirect.github.com/golangci/golangci-lint/blob/HEAD/CHANGELOG.md#v280)

[Compare
Source](https://redirect.github.com/golangci/golangci-lint/compare/v2.7.2...v2.8.0)

*Released on 2026-01-07*

1. Linters new features or changes
- `godoc-lint`: from 0.10.2 to 0.11.1 (new rule:
`require-stdlib-doclink`)
- `golines`: from
[`442fd00`](https://redirect.github.com/golangci/golangci-lint/commit/442fd0091d95)
to 0.14.0
   - `gomoddirectives`: from 0.7.1 to 0.8.0
- `gosec`: from
[`daccba6`](https://redirect.github.com/golangci/golangci-lint/commit/daccba6b93d7)
to 2.22.11 (new rule: `G116`)
- `modernize`: from 0.39.0 to 0.40.0 (new analyzers: `stringscut`,
`unsafefuncs`)
   - `prealloc`: from 1.0.0 to 1.0.1 (message changes)
- `unqueryvet`: from 1.3.0 to 1.4.0 (new options:
`check-aliased-wildcard`, `check-string-concat`, `check-format-strings`,
`check-string-builder`, `check-subqueries`, `ignored-functions`,
`sql-builders`)
2. Linters bug fixes
   - `go-critic`: from 0.14.2 to 0.14.3
   - `go-errorlint`: from 1.8.0 to 1.9.0
   - `govet`: from 0.39.0 to 0.40.0
   - `protogetter`: from 0.3.17 to 0.3.18
   - `revive`: add missing enable-default-rules setting
3. Documentation
   - docs: split installation page

</details>

---

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---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: dmathieu <damien.mathieu@elastic.co>
2026-01-08 11:52:17 +01:00
David Ashpole fa89e4c5ed address feedback from #7478 (#7718)
Addresses
https://github.com/open-telemetry/opentelemetry-go/pull/7478#pullrequestreview-3583818326,
which was left after the PR merged.
2025-12-16 13:01:43 -05:00
David Ashpole 279f1453fe Exponential histogram: defer computing count until collect (#7702)
Tiny part of
https://github.com/open-telemetry/opentelemetry-go/pull/7535

It doesn't make much of a difference now, since we are bound by lock
contention, but it matters once we move to atomics.

```
                                                                                  │  main.txt   │           defercount.txt           │
                                                                                  │   sec/op    │    sec/op     vs base              │
SyncMeasure/NoView/ExemplarsDisabled/ExponentialInt64Histogram/Attributes/0-24      300.9n ± 7%   282.8n ± 10%       ~ (p=0.394 n=6)
SyncMeasure/NoView/ExemplarsDisabled/ExponentialInt64Histogram/Attributes/1-24      300.0n ± 8%   307.5n ±  3%       ~ (p=0.394 n=6)
SyncMeasure/NoView/ExemplarsDisabled/ExponentialInt64Histogram/Attributes/10-24     301.4n ± 5%   300.7n ±  5%       ~ (p=0.485 n=6)
SyncMeasure/NoView/ExemplarsDisabled/ExponentialFloat64Histogram/Attributes/0-24    286.4n ± 4%   284.8n ±  3%       ~ (p=0.420 n=6)
SyncMeasure/NoView/ExemplarsDisabled/ExponentialFloat64Histogram/Attributes/1-24    303.8n ± 3%   294.3n ±  2%  -3.11% (p=0.006 n=6)
SyncMeasure/NoView/ExemplarsDisabled/ExponentialFloat64Histogram/Attributes/10-24   297.9n ± 4%   291.6n ±  3%  -2.10% (p=0.024 n=6)
geomean                                                                             298.3n        293.5n        -1.62%
```
2025-12-16 11:03:52 -05:00
David Ashpole 68d2f72614 Use sync.Map and atomics for lastvalue aggregations (#7478)
Depends on https://github.com/open-telemetry/opentelemetry-go/pull/7474

This applies similar optimizations as
https://github.com/open-telemetry/opentelemetry-go/pull/7427 to the last
value aggregation.

Changes for last value are contained in
https://github.com/open-telemetry/opentelemetry-go/pull/7478/commits/27e14829716bfa5b6cfcdf4841c45c93bf5f0a91.


Parallel benchmarks:
```
                                                                   │   main.txt   │               lv.txt               │
                                                                   │    sec/op    │   sec/op     vs base               │
SyncMeasure/NoView/ExemplarsDisabled/Int64Gauge/Attributes/10-24     264.60n ± 3%   66.46n ± 1%  -74.88% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsDisabled/Float64Gauge/Attributes/10-24   270.25n ± 4%   69.69n ± 1%  -74.21% (p=0.002 n=6)
geomean                                                               267.4n        68.05n       -74.55%
```

Co-authored-by: Damien Mathieu <42@dmathieu.com>
2025-12-16 09:23:13 +01:00
David Ashpole e8542ae7f3 Optimize histogram reservoir (#7443)
This improves the concurrent performance of the histogram reservoir's
Offer function by 4x (i.e. 75% reduction).

Accomplish this by locking each measurement, rather than locking around
the entire storage. Also, defer extracting the trace context from
context.Context until collection time. This improves the performance of
Offer, which is on the measure hot path. Exemplars are often
overwritten, so deferring the operation until Collect reduces the
overall work.

```
                           │   main.txt   │              hist.txt              │
                           │    sec/op    │   sec/op     vs base               │
FixedSizeReservoirOffer-24    211.4n ± 3%   177.5n ± 3%  -16.04% (p=0.002 n=6)
HistogramReservoirOffer-24   200.85n ± 2%   47.41n ± 2%  -76.40% (p=0.002 n=6)
geomean                       206.1n        91.73n       -55.48%
```

Benchmarks for Measure:
```
                                                                                 │  main.txt   │             histres.txt             │
                                                                                 │   sec/op    │    sec/op     vs base               │
SyncMeasure/NoView/ExemplarsEnabled/Int64Histogram/Attributes/0-24                 436.7n ± 4%   114.8n ±  5%  -73.72% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Int64Histogram/Attributes/10-24                472.2n ± 2%   169.7n ±  8%  -64.08% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Float64Histogram/Attributes/0-24               431.0n ± 2%   116.3n ±  2%  -73.01% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsEnabled/Float64Histogram/Attributes/10-24              470.9n ± 1%   171.0n ±  5%  -63.70% (p=0.002 n=6)
```

I explored using a []atomic.Pointer[measurement], but this had similar
performance while being much more complex (needing a sync.Pool to
eliminate allocations). The single-threaded performance was also much
worse for that solution. See
https://github.com/open-telemetry/opentelemetry-go/compare/main...dashpole:optimize_histogram_reservoir_old.

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
2025-12-15 09:59:34 -05:00
Robert Pająk 5b8a1d1294 sdk/log: improve Processor documentation (#7695)
Fixes https://github.com/open-telemetry/opentelemetry-go/issues/7685

- Clarify EnabledParameters contents and Enabled decision semantics
- Remove the requirement of Enabled that param cannot be held by the
implementation as it is immutable
- Refine OnEmit docs around context cancellation and retry handling
- Update Shutdown docs to mention Processor/Exporter and OnEmit instead
of Export
2025-12-12 19:41:20 +01:00
David Ashpole f57bf14de2 Use sync.Map and atomics for fixed bucket histograms (#7474)
Implement a lockless histogram using atomics, and use a sync.Map for
attribute access. This improves performance by ~2x.

The design is very similar to
https://github.com/open-telemetry/opentelemetry-go/pull/7427, but with
one additional change to make the histogram data point itself atomic:

* For cumulative histograms, which do not use a hot/cold limitedSyncMap,
we use a hot/cold data point. This way, we maintain the keys in the sync
map, but still ensure that collection gets a consistent view of
measure() calls.

Parallel benchmarks:
```
                                                                       │  main.txt   │              hist.txt              │
                                                                       │   sec/op    │   sec/op     vs base               │
SyncMeasure/NoView/ExemplarsDisabled/Int64Histogram/Attributes/10-24     274.5n ± 2%   125.2n ± 5%  -54.42% (p=0.002 n=6)
SyncMeasure/NoView/ExemplarsDisabled/Float64Histogram/Attributes/10-24   274.1n ± 2%   132.5n ± 2%  -51.65% (p=0.002 n=6)
geomean                                                                  274.3n        128.8n       -53.05%
```

zero memory allocations before and after this change for Measure().
Omitted for brevity

Benchmarks for collect:
```
                                                    │   main.txt    │               hist.txt               │
                                                    │    sec/op     │    sec/op     vs base                │
Collect/NoView/Int64Histogram/1/Attributes/0-24       1.799µ ±  60%    1.702µ ± 6%         ~ (p=1.000 n=6)
Collect/NoView/Int64Histogram/1/Attributes/1-24       973.7n ±  28%   1720.0n ± 5%   +76.65% (p=0.002 n=6)
Collect/NoView/Int64Histogram/1/Attributes/10-24      881.0n ±  17%   1710.0n ± 5%   +94.09% (p=0.002 n=6)
Collect/NoView/Int64Histogram/10/Attributes/0-24      996.1n ±  14%   1781.5n ± 4%   +78.85% (p=0.002 n=6)
Collect/NoView/Int64Histogram/10/Attributes/1-24      1.029µ ±  67%    1.733µ ± 3%   +68.42% (p=0.009 n=6)
Collect/NoView/Int64Histogram/10/Attributes/10-24     1.533µ ±  18%    1.708µ ± 4%         ~ (p=0.240 n=6)
Collect/NoView/Float64Histogram/1/Attributes/0-24     1.222µ ± 120%    1.733µ ± 4%         ~ (p=0.065 n=6)
Collect/NoView/Float64Histogram/1/Attributes/1-24     893.3n ±   8%   1733.0n ± 4%   +94.00% (p=0.002 n=6)
Collect/NoView/Float64Histogram/1/Attributes/10-24    860.7n ±   2%   1732.0n ± 5%  +101.23% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/0-24    852.5n ±   4%   1758.0n ± 3%  +106.22% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/1-24    853.8n ±   3%   1725.0n ± 3%  +102.04% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/10-24   843.4n ±   2%   1755.0n ± 4%  +108.10% (p=0.002 n=6)
geomean                                               1.028µ           1.732µ        +68.46%

                                                    │  main.txt  │               hist.txt               │
                                                    │    B/op    │     B/op      vs base                │
Collect/NoView/Int64Histogram/1/Attributes/0-24       336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Int64Histogram/1/Attributes/1-24       336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Int64Histogram/1/Attributes/10-24      336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Int64Histogram/10/Attributes/0-24      336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Int64Histogram/10/Attributes/1-24      336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Int64Histogram/10/Attributes/10-24     336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Float64Histogram/1/Attributes/0-24     336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Float64Histogram/1/Attributes/1-24     336.0 ± 0%    2130.5 ± 0%  +534.08% (p=0.002 n=6)
Collect/NoView/Float64Histogram/1/Attributes/10-24    336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/0-24    336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/1-24    336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/10-24   336.0 ± 0%    2131.0 ± 0%  +534.23% (p=0.002 n=6)
geomean                                               336.0        2.081Ki       +534.21%

                                                    │  main.txt  │             hist.txt              │
                                                    │ allocs/op  │ allocs/op   vs base               │
Collect/NoView/Int64Histogram/1/Attributes/0-24       5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Int64Histogram/1/Attributes/1-24       5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Int64Histogram/1/Attributes/10-24      5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Int64Histogram/10/Attributes/0-24      5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Int64Histogram/10/Attributes/1-24      5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Int64Histogram/10/Attributes/10-24     5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Float64Histogram/1/Attributes/0-24     5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Float64Histogram/1/Attributes/1-24     5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Float64Histogram/1/Attributes/10-24    5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/0-24    5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/1-24    5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
Collect/NoView/Float64Histogram/10/Attributes/10-24   5.000 ± 0%   6.000 ± 0%  +20.00% (p=0.002 n=6)
geomean                                               5.000        6.000       +20.00%
```

Collect does get substantially worse, but Measure is expected to be
called significantly more often than collect.

---------

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
2025-12-11 11:56:03 -05:00
renovate[bot] 545883eb6a fix(deps): update opentelemetry-go monorepo to v0.15.0 (#7690)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[go.opentelemetry.io/otel/log](https://redirect.github.com/open-telemetry/opentelemetry-go)
| `v0.14.0` -> `v0.15.0` |
![age](https://developer.mend.io/api/mc/badges/age/go/go.opentelemetry.io%2fotel%2flog/v0.15.0?slim=true)
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|
|
[go.opentelemetry.io/otel/sdk/log](https://redirect.github.com/open-telemetry/opentelemetry-go)
| `v0.14.0` -> `v0.15.0` |
![age](https://developer.mend.io/api/mc/badges/age/go/go.opentelemetry.io%2fotel%2fsdk%2flog/v0.15.0?slim=true)
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|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>open-telemetry/opentelemetry-go
(go.opentelemetry.io/otel/log)</summary>

###
[`v0.15.0`](https://redirect.github.com/open-telemetry/opentelemetry-go/releases/tag/v0.15.0)

[Compare
Source](https://redirect.github.com/open-telemetry/opentelemetry-go/compare/v0.14.0...v0.15.0)

##### Added

- The `WithIDGenerator` `TracerProviderOption` is added to the
`go.opentelemetry.io/otel/trace` package to configure an `IDGenerator`
for the `TracerProvider`.
([#&#8203;1363](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1363))

##### Changed

- The Zipkin exporter now uses the Span status code to determine.
([#&#8203;1328](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1328))
- `NewExporter` and `Start` functions in
`go.opentelemetry.io/otel/exporters/otlp` now receive `context.Context`
as a first parameter.
([#&#8203;1357](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1357))
- Move the OpenCensus example into `example` directory.
([#&#8203;1359](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1359))
- Moved the SDK's `internal.IDGenerator` interface in to the `sdk/trace`
package to enable support for externally-defined ID generators.
([#&#8203;1363](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1363))
- Bump `github.com/google/go-cmp` from 0.5.3 to 0.5.4
([#&#8203;1374](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1374))
- Bump `github.com/golangci/golangci-lint` in `/internal/tools`
([#&#8203;1375](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1375))

##### Fixed

- Metric SDK `SumObserver` and `UpDownSumObserver` instruments
correctness fixes.
([#&#8203;1381](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1381))

# Raw changes made between v0.14.0 and v0.15.0


[`61e07a0`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/61e07a0d629ff6a0c8f7054205972adc09540a53)
(HEAD -> master, tag: v0.15.0, tag: sdk/v0.15.0, tag:
exporters/trace/zipkin/v0.15.0, tag: exporters/trace/jaeger/v0.15.0,
tag: exporters/stdout/v0.15.0, tag: exporters/otlp/v0.15.0, tag:
exporters/metric/prometheus/v0.15.0, tag: example/zipkin/v0.15.0, tag:
example/prometheus/v0.15.0, tag: example/otel-collector/v0.15.0, tag:
example/opencensus/v0.15.0, tag: example/namedtracer/v0.15.0, tag:
example/jaeger/v0.15.0, tag: example/basic/v0.15.0, tag:
bridge/opentracing/v0.15.0, tag: bridge/opencensus/v0.15.0,
upstream/master, origin/master, origin/HEAD) Release v0.15.0
([#&#8203;1392](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1392))

[`599c080`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/599c0803ccf2113875e7934b6bf3fdbf5733494b)
Fix typo in readme
([#&#8203;1390](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1390))

[`eb28005`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/eb28005e2fad10fe050b777a585b64be8cf593cb)
Metric Accumulator fix for SumObservers
([#&#8203;1381](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1381))

[`970755b`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/970755bd087801619575b7473806356818e24e15)
Enable support for externally-defined ID generators
([#&#8203;1363](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1363))

[`0021ab0`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/0021ab0a3a47e4abb116bdb227fd77e912006b9e)
Rework proto generation
([#&#8203;1371](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1371))

[`787e3f4`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/787e3f457a07e3659a7c08a0bd886505da1affab)
chore(zipkin-exporter): relay on the status code for the request but
still read the response body.
([#&#8203;1328](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1328))

[`66db2d8`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/66db2d845ba72bae8fcc1b3d43965470cbe8f5c3)
(johananl/master) Build examples last
([#&#8203;1370](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1370))

[`958041d`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/958041ddf619a1282e92cfd4c50859f2bc71f9c8)
Bump github.com/golangci/golangci-lint in /internal/tools
([#&#8203;1375](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1375))

[`e1ff2d1`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/e1ff2d15cfdebe3516d241048f40baa49980f60f)
Bump github.com/google/go-cmp from 0.5.3 to 0.5.4
([#&#8203;1374](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1374))

[`5d0372d`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/5d0372dd2ed447fed6fd036f219d208f77d5468d)
Fix typo in comment
([#&#8203;1377](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1377))

[`55ff277`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/55ff27787da2cdbdd5cde3564e57841267757e58)
Fix golint issue caused by typo
([#&#8203;1372](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1372))

[`5a728db`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/5a728db2e9713b66615943129568834c5af86ff8)
Another batch of cleanups in otlp exporter
([#&#8203;1357](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1357))

[`e081978`](https://redirect.github.com/open-telemetry/opentelemetry-go/commit/e0819780f9d4ea1e8169109cd71b848fe08f788c)
Move opencensus example to the example directory
([#&#8203;1359](https://redirect.github.com/open-telemetry/opentelemetry-go/issues/1359))

</details>

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
2025-12-08 13:15:42 -08:00
Tyler Yahn 6ce14298b9 Release v1.39.0 (#7676)
## Overview

### Added

- Greatly reduce the cost of recording metrics in
`go.opentelemetry.io/otel/sdk/metric` using hashing for map keys.
(#7175)
- Add `WithInstrumentationAttributeSet` option to
`go.opentelemetry.io/otel/log`, `go.opentelemetry.io/otel/metric`, and
`go.opentelemetry.io/otel/trace` packages. This provides a
concurrent-safe and performant alternative to
`WithInstrumentationAttributes` by accepting a pre-constructed
`attribute.Set`. (#7287)
- Add experimental observability for the Prometheus exporter in
`go.opentelemetry.io/otel/exporters/prometheus`. Check the
`go.opentelemetry.io/otel/exporters/prometheus/internal/x` package
documentation for more information. (#7345)
- Add experimental observability metrics in
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc`. (#7353)
- Add temporality selector functions `DeltaTemporalitySelector`,
`CumulativeTemporalitySelector`, `LowMemoryTemporalitySelector` to
`go.opentelemetry.io/otel/sdk/metric`. (#7434)
- Add experimental observability metrics for simple log processor in
`go.opentelemetry.io/otel/sdk/log`. (#7548)
- Add experimental observability metrics in
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc`.
(#7459)
- Add experimental observability metrics in
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp`.
(#7486)
- Add experimental observability metrics for simple span processor in
`go.opentelemetry.io/otel/sdk/trace`. (#7374)
- Add experimental observability metrics in
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp`. (#7512)
- Add experimental observability metrics for manual reader in
`go.opentelemetry.io/otel/sdk/metric`. (#7524)
- Add experimental observability metrics for periodic reader in
`go.opentelemetry.io/otel/sdk/metric`. (#7571)
- Support `OTEL_EXPORTER_OTLP_LOGS_INSECURE` and
`OTEL_EXPORTER_OTLP_INSECURE` environmental variables in
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp`. (#7608)
- Add `Enabled` method to the `Processor` interface in
`go.opentelemetry.io/otel/sdk/log`. All `Processor` implementations now
include an `Enabled` method. (#7639)
- The `go.opentelemetry.io/otel/semconv/v1.38.0` package. The package
contains semantic conventions from the `v1.38.0` version of the
OpenTelemetry Semantic Conventions. See the [migration
documentation](./semconv/v1.38.0/MIGRATION.md) for information on how to
upgrade from `go.opentelemetry.io/otel/semconv/v1.37.0.`(#7648)

### Changed

- `Distinct` in `go.opentelemetry.io/otel/attribute` is no longer
guaranteed to uniquely identify an attribute set. Collisions between
`Distinct` values for different Sets are possible with extremely high
cardinality (billions of series per instrument), but are highly
unlikely. (#7175)
- `WithInstrumentationAttributes` in `go.opentelemetry.io/otel/trace`
synchronously de-duplicates the passed attributes instead of delegating
it to the returned `TracerOption`. (#7266)
- `WithInstrumentationAttributes` in `go.opentelemetry.io/otel/meter`
synchronously de-duplicates the passed attributes instead of delegating
it to the returned `MeterOption`. (#7266)
- `WithInstrumentationAttributes` in `go.opentelemetry.io/otel/log`
synchronously de-duplicates the passed attributes instead of delegating
it to the returned `LoggerOption`. (#7266)
- Rename the `OTEL_GO_X_SELF_OBSERVABILITY` environment variable to
`OTEL_GO_X_OBSERVABILITY` in `go.opentelemetry.io/otel/sdk/trace`,
`go.opentelemetry.io/otel/sdk/log`, and
`go.opentelemetry.io/otel/exporters/stdout/stdouttrace`. (#7302)
- Improve performance of histogram `Record` in
`go.opentelemetry.io/otel/sdk/metric` when min and max are disabled
using `NoMinMax`. (#7306)
- Improve error handling for dropped data during translation by using
`prometheus.NewInvalidMetric` in
`go.opentelemetry.io/otel/exporters/prometheus`. ⚠️ **Breaking Change:**
Previously, these cases were only logged and scrapes succeeded. Now,
when translation would drop data (e.g., invalid label/value), the
exporter emits a `NewInvalidMetric`, and Prometheus scrapes **fail with
HTTP 500** by default. To preserve the prior behavior (scrapes succeed
while errors are logged), configure your Prometheus HTTP handler with:
`promhttp.HandlerOpts{ ErrorHandling: promhttp.ContinueOnError }`.
(#7363)
- Replace fnv hash with xxhash in `go.opentelemetry.io/otel/attribute`
for better performance. (#7371)
- The default `TranslationStrategy` in
`go.opentelemetry.io/exporters/prometheus` is changed from
`otlptranslator.NoUTF8EscapingWithSuffixes` to
`otlptranslator.UnderscoreEscapingWithSuffixes`. (#7421)
- Improve performance of concurrent measurements in
`go.opentelemetry.io/otel/sdk/metric`. (#7427)
- Include W3C TraceFlags (bits 0–7) in the OTLP `Span.Flags` field in
`go.opentelemetry.io/exporters/otlp/otlptrace/otlptracehttp` and
`go.opentelemetry.io/exporters/otlp/otlptrace/otlptracegrpc`. (#7438)
- The `ErrorType` function in `go.opentelemetry.io/otel/semconv/v1.37.0`
now handles custom error types.
If an error implements an `ErrorType() string` method, the return value
of that method will be used as the error type. (#7442)

### Fixed

- Fix `WithInstrumentationAttributes` options in
`go.opentelemetry.io/otel/trace`, `go.opentelemetry.io/otel/metric`, and
`go.opentelemetry.io/otel/log` to properly merge attributes when passed
multiple times instead of replacing them. Attributes with duplicate keys
will use the last value passed. (#7300)
- The equality of `attribute.Set` when using the `Equal` method is not
affected by the user overriding the empty set pointed to by
`attribute.EmptySet` in `go.opentelemetry.io/otel/attribute`. (#7357)
- Return partial OTLP export errors to the caller in
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc`. (#7372)
- Return partial OTLP export errors to the caller in
`go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp`. (#7372)
- Return partial OTLP export errors to the caller in
`go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc`.
(#7372)
- Return partial OTLP export errors to the caller in
`go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp`.
(#7372)
- Return partial OTLP export errors to the caller in
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc`.
(#7372)
- Return partial OTLP export errors to the caller in
`go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp`.
(#7372)
- Fix `AddAttributes`, `SetAttributes`, `SetBody` on `Record` in
`go.opentelemetry.io/otel/sdk/log` to not mutate input. (#7403)
- Do not double record measurements of `RecordSet` methods in
`go.opentelemetry.io/otel/semconv/v1.37.0`. (#7655)
- Do not double record measurements of `RecordSet` methods in
`go.opentelemetry.io/otel/semconv/v1.36.0`. (#7656)

### Removed

- Drop support for [Go 1.23]. (#7274)
- Remove the `FilterProcessor` interface in
`go.opentelemetry.io/otel/sdk/log`. The `Enabled` method has been added
to the `Processor` interface instead. All `Processor` implementations
must now implement the `Enabled` method. Custom processors that do not
filter records can implement `Enabled` to return `true`. (#7639)
2025-12-08 08:30:47 -08:00
Robert Pająk 12e421a706 sdk/log: move Enabled method from FilterProcessor to Processor (#7639)
Fixes #7617

Simplify the Logs SDK by unifying processor capabilities into a single
interface.

- Add `Enabled(ctx context.Context, p EnabledParameters) bool` to
`sdk/log.Processor`.
- Remove `sdk/log.FilterProcessor` interface.

`Processor` implementations must now implement the `Enabled` method.
Custom processors that do not filter records can implement `Enabled` to
return `true`.
2025-12-08 15:26:05 +01:00
renovate[bot] 5982f16d24 fix(deps): update module golang.org/x/sys to v0.39.0 (#7684)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| golang.org/x/sys | `v0.38.0` -> `v0.39.0` |
![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fsys/v0.39.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2fsys/v0.38.0/v0.39.0?slim=true)
|

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Dashboard for more information.

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2025-12-08 14:46:26 +01:00
ian ca53078985 Instrument the SimpleLogProcessor from sdk/log (#7548)
ref #7016


```txt
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/log
cpu: Intel(R) Core(TM) i7-14700
                                                │ before.txt  │  .\after_res.txt   │
                                                │   sec/op    │   sec/op     vs base   │
SimpleProcessorObservability/NoObservability-28   27.68n ± 4%
SimpleProcessorObservability/Observability-28                   27.39n ± 5%
geomean                                           27.68n        27.38n       ? ¹ ²
¹ benchmark set differs from baseline; geomeans may not be comparable
² ratios must be >0 to compute geomean

                                                │  before.txt  │   .\after_res.txt   │
                                                │     B/op     │    B/op     vs base │
SimpleProcessorObservability/NoObservability-28   0.000 ± 0%
SimpleProcessorObservability/Observability-28                    0.000 ± 0%
geomean                                                      ¹               ? ² ¹ ³
¹ summaries must be >0 to compute geomean
² benchmark set differs from baseline; geomeans may not be comparable
³ ratios must be >0 to compute geomean

                                                │  before.txt  │   .\after_res.txt   │
                                                │  allocs/op   │ allocs/op   vs base │
SimpleProcessorObservability/NoObservability-28   0.000 ± 0%
SimpleProcessorObservability/Observability-28                    0.000 ± 0%
geomean                                                      ¹               ? ² ¹ ³
¹ summaries must be >0 to compute geomean
² benchmark set differs from baseline; geomeans may not be comparable
³ ratios must be >0 to compute geomean
```

---------

Co-authored-by: Flc゛ <i@flc.io>
Co-authored-by: Cijo Thomas <cithomas@microsoft.com>
Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: dmathieu <42@dmathieu.com>
2025-12-04 13:28:07 +01:00
Preeti Dewani 49292857b7 Replace fnv with xxhash (#7497)
**Objective**:
- Performance comparison between fnv and xxhash in terms of ops/sec,
allocations and collisions
- Implement xxhash according to first objective

**Changes**:
- fnv is replaced by xxhash. 
  Perform stats:
  - **Collision**: No collision upto 100M
  - **Allocations**: Same in both cases
- **Ops/sec**: xxhash performed better in cases with medium to large
strings
 
 **Benchmarks**:
 ```
 benchstat old.txt new.txt
goos: darwin
goarch: arm64
pkg: go.opentelemetry.io/otel/attribute
cpu: Apple M2
│ old.txt │ new.txt │
│ sec/op │ sec/op vs base │
NewSet-8 205.5n ± 1% 229.4n ± 1% +11.61% (p=0.002 n=6)
NewSetSmallStrings-8 160.5n ± 1% 169.0n ± 5% +5.26% (p=0.002 n=6)
NewSetMediumStrings-8 263.8n ± 6% 185.0n ± 1% -29.89% (p=0.002 n=6)
NewSetLargeStrings-8 426.4n ± 9% 210.2n ± 1% -50.72% (p=0.002 n=6)
NewSetVeryLargeStrings-8 1012.5n ± 7% 238.7n ± 2% -76.43% (p=0.002 n=6)
NewSetHugeStrings-8 3622.0n ± 8% 397.1n ± 1% -89.04% (p=0.002 n=6)
geomean                     488.6n        228.6n       -53.21%

│ old.txt │ new.txt │
│ B/op │ B/op vs base │
NewSet-8 448.0 ± 0% 448.0 ± 0% ~ (p=1.000 n=6) ¹
NewSetSmallStrings-8 320.0 ± 0% 320.0 ± 0% ~ (p=1.000 n=6) ¹
NewSetMediumStrings-8 320.0 ± 0% 320.0 ± 0% ~ (p=1.000 n=6) ¹
NewSetLargeStrings-8 320.0 ± 0% 320.0 ± 0% ~ (p=1.000 n=6) ¹
NewSetVeryLargeStrings-8 320.0 ± 0% 320.0 ± 0% ~ (p=1.000 n=6) ¹
NewSetHugeStrings-8 320.0 ± 0% 320.0 ± 0% ~ (p=1.000 n=6) ¹
geomean                    338.5        338.5       +0.00%
¹ all samples are equal

│ old.txt │ new.txt │
│ allocs/op │ allocs/op vs base │
NewSet-8 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=6) ¹
NewSetSmallStrings-8 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=6) ¹
NewSetMediumStrings-8 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=6) ¹
NewSetLargeStrings-8 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=6) ¹
NewSetVeryLargeStrings-8 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=6) ¹
NewSetHugeStrings-8 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=6) ¹
geomean                    1.000        1.000       +0.00%
¹ all samples are equal
```

Previous implementation for reference: 
https://github.com/open-telemetry/opentelemetry-go/blame/d0483a7c89d936dcced557fb523465daeac16967/CHANGELOG.md#L16

---------

Co-authored-by: Robert Pająk <pellared@hotmail.com>
2025-11-19 11:06:20 +01:00
renovate[bot] d1ebd7b9ff fix(deps): update golang.org/x (#7590)
This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| golang.org/x/sync | `v0.17.0` -> `v0.18.0` |
[![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fsync/v0.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2fsync/v0.17.0/v0.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
| golang.org/x/sys | `v0.37.0` -> `v0.38.0` |
[![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2fsys/v0.38.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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