21 lines
608 B
Markdown
21 lines
608 B
Markdown
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# how to jmh
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[jmh] (Java Benchmark Harness) is a tool for running benchmarks and reporting results.
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opentelemetry-java has a lot of micro benchmarks. They live inside
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`jmh` directories in the appropriate module.
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The benchmarks are run with a gradle plugin.
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To run an entire suite for a module, you can run the jmh gradle task.
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As an example, here's how you can run the benchmarks for all of
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the sdk trace module.
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```
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`./gradlew :sdk:trace:jmh`
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```
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If you just want to run a single benchmark and not the entire suite:
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`./gradlew -PjmhIncludeSingleClass=BatchSpanProcessorBenchmark :sdk:trace:jmh` |