build.gradle

plugins {
    id 'java'
    id "me.champeau.jmh" version "0.6.6"
}

group 'ch.styp'
version '1.0-SNAPSHOT'

repositories {
    mavenCentral()
}

test {
    useJUnitPlatform()
}

dependencies {
    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1'
}

var incubatorArguments = ["--add-modules", "jdk.incubator.vector"]
tasks.withType(AbstractCompile) { options.compilerArgs += incubatorArguments }
tasks.withType(Test) { jvmArgs += incubatorArguments }

jmh {
    iterations = 5 // Number of measurement iterations to do.
    benchmarkMode = ['sample'] // Benchmark mode. Available modes are: [Throughput/thrpt, AverageTime/avgt, SampleTime/sample, SingleShotTime/ss, All/all]
    batchSize = 1 // Batch size: number of benchmark method calls per operation. (some benchmark modes can ignore this setting)
    fork = 1 // How many times to forks a single benchmark. Use 0 to disable forking altogether
    failOnError = true // Should JMH fail immediately if any benchmark had experienced the unrecoverable error?
    forceGC = false // Should JMH force GC between iterations?
    jvmArgsAppend = incubatorArguments // +  " -XX:-UseSuperWord"
    humanOutputFile = project.file("${project.buildDir}/reports/jmh/human.txt") // human-readable output file
    resultsFile = project.file("${project.buildDir}/reports/jmh/results.txt") // results file
    operationsPerInvocation = 10 // Operations per invocation.
    benchmarkParameters =  [:] // Benchmark parameters.
    profilers = [] // Use profilers to collect additional data. Supported profilers: [cl, comp, gc, stack, perf, perfnorm, perfasm, xperf, xperfasm, hs_cl, hs_comp, hs_gc, hs_rt, hs_thr, async]
//    profilers = ['perfnorm'] // Use profilers to collect additional data. Supported profilers: [cl, comp, gc, stack, perf, perfnorm, perfasm, xperf, xperfasm, hs_cl, hs_comp, hs_gc, hs_rt, hs_thr, async]
    timeOnIteration = '30s' // Time to spend at each measurement iteration.
    resultFormat = 'CSV' // Result format type (one of CSV, JSON, NONE, SCSV, TEXT)
    synchronizeIterations = false // Synchronize iterations?
    //threads = 4 // Number of worker threads to run with.
    //threadGroups = [2,3,4] //Override thread group distribution for asymmetric benchmarks.
    timeUnit = 'ns' // Output time unit. Available time units are: [m, s, ms, us, ns].
    verbosity = 'NORMAL' // Verbosity mode. Available modes are: [SILENT, NORMAL, EXTRA]
    warmup = '1s' // Time to spend at each warmup iteration.
    warmupBatchSize = 10 // Warmup batch size: number of benchmark method calls per operation.
    warmupForks = 0 // How many warmup forks to make for a single benchmark. 0 to disable warmup forks.
    warmupIterations = 1 // Number of warmup iterations to do.
    warmupMode = 'INDI' // Warmup mode for warming up selected benchmarks. Warmup modes are: [INDI, BULK, BULK_INDI].
    warmupBenchmarks = ['.*Warmup'] // Warmup benchmarks to include in the run in addition to already selected. JMH will not measure these benchmarks, but only use them for the warmup.
    zip64 = true // Use ZIP64 format for bigger archives
    jmhVersion = '1.29' // Specifies JMH version
    includeTests = false // Allows to include test sources into generate JMH jar, i.e. use it when benchmarks depend on the test classes.
    duplicateClassesStrategy = DuplicatesStrategy.EXCLUDE // Strategy to apply when encountring duplicate classes during creation of the fat jar (i.e. while executing jmhJar task)
}