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RangePerf.java
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84 lines (63 loc) · 2.32 KB
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/**
* Copyright 2015 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
* the License for the specific language governing permissions and limitations under the License.
*/
package io.reactivex;
import java.util.concurrent.TimeUnit;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import io.reactivex.internal.schedulers.SingleScheduler;
import io.reactivex.schedulers.Schedulers;
@BenchmarkMode(Mode.Throughput)
@Warmup(iterations = 5)
@Measurement(iterations = 5, time = 5, timeUnit = TimeUnit.SECONDS)
@OutputTimeUnit(TimeUnit.SECONDS)
@Fork(value = 1)
@State(Scope.Thread)
public class RangePerf {
@Param({ "1", "1000", "1000000" })
public int times;
Observable<Integer> range;
Observable<Integer> rangeAsync;
Observable<Integer> rangeAsyncPipeline;
@Setup
public void setup() {
range = Observable.range(1, times);
rangeAsync = range.observeOn(Schedulers.single());
rangeAsyncPipeline = range.subscribeOn(new SingleScheduler()).observeOn(Schedulers.single());
}
@Benchmark
public Object rangeSync(Blackhole bh) {
LatchedObserver<Integer> lo = new LatchedObserver<>(bh);
range.subscribe(lo);
return lo;
}
@Benchmark
public void rangeAsync(Blackhole bh) throws Exception {
LatchedObserver<Integer> lo = new LatchedObserver<>(bh);
rangeAsync.subscribe(lo);
if (times == 1) {
while (lo.latch.getCount() != 0);
} else {
lo.latch.await();
}
}
@Benchmark
public void rangePipeline(Blackhole bh) throws Exception {
LatchedObserver<Integer> lo = new LatchedObserver<>(bh);
rangeAsyncPipeline.subscribe(lo);
if (times == 1) {
while (lo.latch.getCount() != 0);
} else {
lo.latch.await();
}
}
}