io.scalecube.benchmarks.examples.ExampleBenchmarksRunner Maven / Gradle / Ivy

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package io.scalecube.benchmarks.examples;

import io.scalecube.benchmarks.BenchmarksSettings;

import com.codahale.metrics.Histogram;
import com.codahale.metrics.Meter;
import com.codahale.metrics.Timer;

import java.util.concurrent.TimeUnit;

public class ExampleBenchmarksRunner {

  /**
   * Runs example benchmark.
   *
   * @param args command line args
   */
  public static void main(String[] args) {
    BenchmarksSettings settings = BenchmarksSettings.from(args).durationUnit(TimeUnit.NANOSECONDS).build();
    new ExampleServiceBenchmarksState(settings).runForAsync(state -> {

      ExampleService service = state.exampleService();
      Timer timer = state.timer("timer");
      Meter meter = state.meter("meter");
      Histogram histogram = state.histogram("histogram");

      return i -> {
        long start = System.nanoTime();
        Timer.Context timeContext = timer.time();
        return service.invoke("hello")
            .doOnTerminate(() -> {
              timeContext.stop();
              meter.mark();
              histogram.update(System.nanoTime() - start);
            });
      };
    });
  }
}