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Files
opentelemetry-go/sdk
David Ashpole 2e0b5b4235 Add benchmark for synchronous gauge measurement (#7407)
These were missing from our benchmarks for synchronous instruments.

Single-threaded:
```
goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/metric
cpu: Intel(R) Xeon(R) CPU @ 2.20GHz
BenchmarkSyncMeasure/NoView/Float64Gauge/Attributes/0         	  114369	       106.0 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Float64Gauge/Attributes/1         	  106424	       119.4 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Float64Gauge/Attributes/10        	   79513	       128.7 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Int64Gauge/Attributes/0         	  110667	       166.0 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Int64Gauge/Attributes/1         	  103809	       150.2 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Int64Gauge/Attributes/10        	   76430	       144.2 ns/op	       0 B/op	       0 allocs/op
```

Parallel:
```
goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/metric
cpu: Intel(R) Xeon(R) CPU @ 2.20GHz
BenchmarkSyncMeasure/NoView/Float64Gauge/Attributes/0-24         	   40507	       283.4 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Float64Gauge/Attributes/1-24         	   43918	       305.3 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Float64Gauge/Attributes/10-24        	   41348	       291.0 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Int64Gauge/Attributes/0-24         	   48070	       291.1 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Int64Gauge/Attributes/1-24         	   43290	       274.9 ns/op	       0 B/op	       0 allocs/op
BenchmarkSyncMeasure/NoView/Int64Gauge/Attributes/10-24        	   40003	       325.0 ns/op	       0 B/op	       0 allocs/op
```
2025-09-25 09:30:27 -04:00
..
2025-08-29 12:42:52 -07:00

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