package com.codahale.metrics.benchmarks;
import com.codahale.metrics.Counter;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
@State(Scope.Benchmark)
public class CounterBenchmark {
private final Counter counter = new Counter();
// It's intentionally not declared as final to avoid constant folding
private long nextValue = 0xFBFBABBA;
@Benchmark
public Object perfIncrement() {
counter.inc(nextValue);
return counter;
}
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(".*" + CounterBenchmark.class.getSimpleName() + ".*")
.warmupIterations(3)
.measurementIterations(5)
.threads(4)
.forks(1)
.build();
new Runner(opt).run();
}
}