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BlockingPerf.java

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/**

* Copyright 2016 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.Arrays;

import java.util.concurrent.TimeUnit;

import org.openjdk.jmh.annotations.*;

import io.reactivex.flowables.BlockingFlowable;

import io.reactivex.observables.BlockingObservable;

@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 BlockingPerf {

@Param({ "1", "1000", "1000000" })

public int times;

Flowable<Integer> flowable;

BlockingFlowable<Integer> flowableBlocking;

Observable<Integer> observable;

BlockingObservable<Integer> observableBlocking;

@Setup

public void setup() {

Integer[] array = new Integer[times];

Arrays.fill(array, 777);

flowable = Flowable.fromArray(array);

flowableBlocking = flowable.toBlocking();

observable = Observable.fromArray(array);

observableBlocking = observable.toBlocking();

}

@Benchmark

public Object flowableFirst() {

return flowable.toBlocking().first();

}

@Benchmark

public Object flowableLast() {

return flowable.toBlocking().last();

}

@Benchmark

public Object flowableBlockingFirst() {

return flowableBlocking.first();

}

@Benchmark

public Object flowableBlockingLast() {

return flowableBlocking.last();

}

@Benchmark

public Object observableFirst() {

return observable.toBlocking().first();

}

@Benchmark

public Object observableLast() {

return observable.toBlocking().last();

}

@Benchmark

public Object observableBlockingFirst() {

return observableBlocking.first();

}

@Benchmark

public Object observableBlockingLast() {

return observableBlocking.last();

}

}