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c51c07a7b8
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78ff512f26
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package cn.bunny.jmh;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import java.util.concurrent.TimeUnit;
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@BenchmarkMode(Mode.AverageTime)
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@Fork(0)
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@Warmup(iterations = 5)
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@Measurement(iterations = 5)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@State(Scope.Thread)
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public class JMHExample12 {
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private final Inc inc1 = new Inc1();
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private final Inc inc2 = new Inc2();
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public static void main(String[] args) throws RunnerException {
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final Options options = new OptionsBuilder()
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.include(JMHExample12.class.getSimpleName())
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.build();
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new Runner(options).run();
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}
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private int measure(Inc inc) {
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int result = 0;
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for (int i = 0; i < 10; i++) {
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result += inc.inc();
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}
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return result;
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}
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@Benchmark
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public int measure_inc_1() {
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return this.measure(inc1);
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}
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@Benchmark
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public int measure_inc_2() {
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return this.measure(inc2);
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}
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@Benchmark
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public int measure_inc_3() {
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return this.measure(inc1);
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}
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interface Inc {
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int inc();
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}
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public static class Inc1 implements Inc {
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private int i = 0;
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@Override
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public int inc() {
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return ++i;
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}
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}
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public static class Inc2 implements Inc {
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private int i = 0;
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@Override
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public int inc() {
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return ++i;
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}
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}
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}
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@ -1,47 +0,0 @@
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package cn.bunny.jmh;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicInteger;
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@BenchmarkMode(Mode.AverageTime)
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@Fork(1)
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@Warmup(iterations = 5)
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@Measurement(iterations = 5)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@State(Scope.Group)
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public class JMHExample13 {
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private AtomicInteger counter;
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public static void main(String[] args) throws RunnerException {
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final Options options = new OptionsBuilder()
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.include(JMHExample13.class.getSimpleName())
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.build();
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new Runner(options).run();
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}
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@Setup
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public void setup() {
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this.counter = new AtomicInteger();
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}
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@GroupThreads(5)
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@Group("q")
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@Benchmark
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public void inc() {
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this.counter.incrementAndGet();
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}
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@GroupThreads(5)
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@Group("q")
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@Benchmark
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public int get() {
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return this.counter.get();
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}
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}
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@ -1,49 +0,0 @@
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package cn.bunny.jmh;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import java.util.concurrent.BlockingDeque;
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import java.util.concurrent.LinkedBlockingDeque;
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import java.util.concurrent.TimeUnit;
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@BenchmarkMode(Mode.AverageTime)
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@Fork(1)
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@Warmup(iterations = 5)
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@Measurement(iterations = 5)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@State(Scope.Group)
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public class JMHExample14 {
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private final static int VALUE = Integer.MAX_VALUE;
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private BlockingDeque<Integer> queue;
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public static void main(String[] args) throws RunnerException {
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final Options options = new OptionsBuilder()
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.include(JMHExample14.class.getSimpleName())
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.build();
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new Runner(options).run();
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}
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@Setup
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public void init() {
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this.queue = new LinkedBlockingDeque<>(10);
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}
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// 会出现长时间的阻塞最长时间正常是10分钟，在下一章节会对这个进行优化
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@GroupThreads(5)
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@Group("blockingQueue")
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@Benchmark
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public void put() throws InterruptedException {
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this.queue.put(VALUE);
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}
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@GroupThreads(5)
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@Group("blockingQueue")
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@Benchmark
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public int take() throws InterruptedException {
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return this.queue.take();
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}
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}
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@ -1,52 +0,0 @@
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package cn.bunny.jmh;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import org.openjdk.jmh.runner.options.TimeValue;
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import java.util.concurrent.BlockingDeque;
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import java.util.concurrent.LinkedBlockingDeque;
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import java.util.concurrent.TimeUnit;
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@BenchmarkMode(Mode.AverageTime)
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@Fork(1)
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@Warmup(iterations = 5)
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@Measurement(iterations = 5)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@State(Scope.Group)
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public class JMHExample15 {
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private final static int VALUE = Integer.MAX_VALUE;
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private BlockingDeque<Integer> queue;
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public static void main(String[] args) throws RunnerException {
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final Options options = new OptionsBuilder()
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.include(JMHExample15.class.getSimpleName())
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// 最长批次超时时间不能大于10秒
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.timeout(TimeValue.seconds(10))
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.build();
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new Runner(options).run();
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}
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@Setup
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public void init() {
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this.queue = new LinkedBlockingDeque<>(10);
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}
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// 会出现长时间的阻塞最长时间正常是10分钟，在下一章节会对这个进行优化
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@GroupThreads(5)
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@Group("blockingQueue")
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@Benchmark
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public void put() throws InterruptedException {
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this.queue.put(VALUE);
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}
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@GroupThreads(5)
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@Group("blockingQueue")
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@Benchmark
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public int take() throws InterruptedException {
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return this.queue.take();
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}
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}
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@ -1,66 +0,0 @@
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package cn.bunny.jmh;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import java.util.*;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ConcurrentSkipListMap;
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import java.util.concurrent.TimeUnit;
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@BenchmarkMode(Mode.AverageTime)
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@Fork(1)
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@Warmup(iterations = 5)
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@Measurement(iterations = 5)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@State(Scope.Group)
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public class JMHExample16 {
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// 为type提供了4中可配置的参数值
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@Param({"1", "2", "3", "4"})
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private int type;
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private Map<Integer, Integer> map;
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public static void main(String[] args) throws RunnerException {
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Options options = new OptionsBuilder()
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.include(JMHExample16.class.getSimpleName())
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.build();
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new Runner(options).run();
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}
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@Setup
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public void setup() {
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switch (type) {
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case 1:
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this.map = new ConcurrentHashMap<>();
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break;
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case 2:
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this.map = new ConcurrentSkipListMap<>();
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break;
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case 3:
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this.map = new Hashtable<>();
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break;
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case 4:
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this.map = Collections.synchronizedMap(new HashMap<>());
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break;
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default:
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throw new IllegalArgumentException("Illegal map type");
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}
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}
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@Group("g")
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@GroupThreads(5)
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@Benchmark
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public void put() {
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int num = new Random().nextInt();
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this.map.put(num, num);
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}
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public Integer get() {
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int num = new Random().nextInt();
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return this.map.get(num);
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}
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}
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@ -1,52 +0,0 @@
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package cn.bunny.jmh;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.profile.StackProfiler;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import org.openjdk.jmh.runner.options.TimeValue;
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import java.util.concurrent.BlockingDeque;
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import java.util.concurrent.LinkedBlockingDeque;
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import java.util.concurrent.TimeUnit;
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@BenchmarkMode(Mode.AverageTime)
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@Fork(1)
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@Warmup(iterations = 5)
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@Measurement(iterations = 5)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@State(Scope.Group)
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public class JMHExample17 {
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private final static int VALUE = Integer.MAX_VALUE;
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private BlockingDeque<Integer> queue;
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public static void main(String[] args) throws RunnerException {
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final Options options = new OptionsBuilder()
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.include(JMHExample17.class.getSimpleName())
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.timeout(TimeValue.seconds(10))
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.addProfiler(StackProfiler.class)
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.build();
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new Runner(options).run();
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}
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@Setup
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public void init() {
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this.queue = new LinkedBlockingDeque<>(10);
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}
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@GroupThreads(5)
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@Group("blockingQueue")
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@Benchmark
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public void put() throws InterruptedException {
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this.queue.put(VALUE);
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}
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@GroupThreads(5)
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@Group("blockingQueue")
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@Benchmark
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public int take() throws InterruptedException {
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return this.queue.take();
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}
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}
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