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Preeti Dewani
49292857b7
**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>
31 lines
849 B
Modula-2
31 lines
849 B
Modula-2
module go.opentelemetry.io/otel/log/logtest
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go 1.24.0
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require (
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github.com/google/go-cmp v0.7.0
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github.com/stretchr/testify v1.11.1
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go.opentelemetry.io/otel v1.38.0
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go.opentelemetry.io/otel/log v0.14.0
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)
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require (
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github.com/cespare/xxhash/v2 v2.3.0 // indirect
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github.com/davecgh/go-spew v1.1.1 // indirect
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github.com/go-logr/logr v1.4.3 // indirect
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github.com/go-logr/stdr v1.2.2 // indirect
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github.com/pmezard/go-difflib v1.0.0 // indirect
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go.opentelemetry.io/auto/sdk v1.2.1 // indirect
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go.opentelemetry.io/otel/metric v1.38.0 // indirect
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go.opentelemetry.io/otel/trace v1.38.0 // indirect
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gopkg.in/yaml.v3 v3.0.1 // indirect
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)
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replace go.opentelemetry.io/otel/metric => ../../metric
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replace go.opentelemetry.io/otel => ../../
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replace go.opentelemetry.io/otel/trace => ../../trace
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replace go.opentelemetry.io/otel/log => ../
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