86 lines
3.0 KiB
Plaintext
86 lines
3.0 KiB
Plaintext
import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
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import me.champeau.jmh.JMHTask
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import net.ltgt.gradle.errorprone.errorprone
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plugins {
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id("otel.java-conventions")
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id("otel.jmh-conventions")
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}
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dependencies {
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jmhImplementation("org.springframework.boot:spring-boot-starter-web:3.2.4")
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}
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tasks {
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// TODO(trask) without disabling errorprone, jmh task fails with
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// Task :testing-overhead-jmh:jmhCompileGeneratedClasses FAILED
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// error: plug-in not found: ErrorProne
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withType<JavaCompile>().configureEach {
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options.errorprone {
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isEnabled.set(false)
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}
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}
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// TODO(trask) move to otel.jmh-conventions?
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val jmhFork = gradle.startParameter.projectProperties["jmh.fork"]?.toInt()
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val jmhWarmupIterations = gradle.startParameter.projectProperties["jmh.warmupIterations"]?.toInt()
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val jmhIterations = gradle.startParameter.projectProperties["jmh.iterations"]?.toInt()
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val jmhIncludes = gradle.startParameter.projectProperties["jmh.includes"]
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// note: if you want to capture a flight recording for a single benchmark, try
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// -Pjmh.fork=1
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// -Pjmh.warmupIterations=5
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// -Pjmh.iterations=5
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// -Pjmh.includes=<benchmark>
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// -Pjmh.startFlightRecording=settings=profile.jfc,delay=50s,duration=50s,filename=output.jfr
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// since each iteration is 10 seconds, the flight recording produced will approximately cover the
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// (post-warmup) benchmarking iterations
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val jmhStartFlightRecording = gradle.startParameter.projectProperties.get("jmh.startFlightRecording")
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named<JMHTask>("jmh") {
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val shadowTask = project(":javaagent").tasks.named<ShadowJar>("shadowJar").get()
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inputs.files(layout.files(shadowTask))
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// note: without an exporter, toSpanData() won't even be called
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// (which is good for benchmarking the instrumentation itself)
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val args = mutableListOf(
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"-javaagent:${shadowTask.archiveFile.get()}",
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"-Dotel.traces.exporter=none",
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"-Dotel.metrics.exporter=none",
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// avoid instrumenting HttpURLConnection for now since it is used to make the requests
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// and this benchmark is focused on servlet overhead for now
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"-Dotel.instrumentation.http-url-connection.enabled=false",
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)
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if (jmhStartFlightRecording != null) {
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args.addAll(
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listOf(
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"-XX:+FlightRecorder",
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"-XX:StartFlightRecording=$jmhStartFlightRecording",
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// enabling profiling at non-safepoints helps with micro-profiling
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"-XX:+UnlockDiagnosticVMOptions",
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"-XX:+DebugNonSafepoints",
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),
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)
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}
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// see https://github.com/melix/jmh-gradle-plugin/issues/200
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jvmArgsPrepend.add(args.joinToString(" "))
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if (jmhFork != null) {
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fork.set(jmhFork)
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}
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if (jmhWarmupIterations != null) {
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warmupIterations.set(jmhWarmupIterations)
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}
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if (jmhIterations != null) {
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iterations.set(jmhIterations)
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}
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if (jmhIncludes != null) {
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includes.addAll(jmhIncludes.split(','))
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}
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// TODO(trask) is this ok? if it's ok, move to otel.jmh-conventions?
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outputs.upToDateWhen { false }
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}
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}
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