feat: JMHExample17

multithreading1/src/main/java/cn/bunny/jmh/JMHExample12.java

@@ -0,0 +1,72 @@
+package cn.bunny.jmh;
+
+import org.openjdk.jmh.annotations.*;
+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;
+
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@Fork(0)
+@Warmup(iterations = 5)
+@Measurement(iterations = 5)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Thread)
+public class JMHExample12 {
+    private final Inc inc1 = new Inc1();
+    private final Inc inc2 = new Inc2();
+
+    public static void main(String[] args) throws RunnerException {
+        final Options options = new OptionsBuilder()
+                .include(JMHExample12.class.getSimpleName())
+                .build();
+        new Runner(options).run();
+    }
+
+    private int measure(Inc inc) {
+        int result = 0;
+        for (int i = 0; i < 10; i++) {
+            result += inc.inc();
+        }
+        return result;
+    }
+
+    @Benchmark
+    public int measure_inc_1() {
+        return this.measure(inc1);
+    }
+
+    @Benchmark
+    public int measure_inc_2() {
+        return this.measure(inc2);
+    }
+
+    @Benchmark
+    public int measure_inc_3() {
+        return this.measure(inc1);
+    }
+
+    interface Inc {
+        int inc();
+    }
+
+    public static class Inc1 implements Inc {
+        private int i = 0;
+
+        @Override
+        public int inc() {
+            return ++i;
+        }
+    }
+
+    public static class Inc2 implements Inc {
+        private int i = 0;
+
+        @Override
+        public int inc() {
+            return ++i;
+        }
+    }
+}

multithreading1/src/main/java/cn/bunny/jmh/JMHExample13.java

@@ -0,0 +1,47 @@
+package cn.bunny.jmh;
+
+import org.openjdk.jmh.annotations.*;
+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;
+
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+
+@BenchmarkMode(Mode.AverageTime)
+@Fork(1)
+@Warmup(iterations = 5)
+@Measurement(iterations = 5)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Group)
+public class JMHExample13 {
+
+    private AtomicInteger counter;
+
+    public static void main(String[] args) throws RunnerException {
+        final Options options = new OptionsBuilder()
+                .include(JMHExample13.class.getSimpleName())
+                .build();
+        new Runner(options).run();
+    }
+
+    @Setup
+    public void setup() {
+        this.counter = new AtomicInteger();
+    }
+
+    @GroupThreads(5)
+    @Group("q")
+    @Benchmark
+    public void inc() {
+        this.counter.incrementAndGet();
+    }
+
+    @GroupThreads(5)
+    @Group("q")
+    @Benchmark
+    public int get() {
+        return this.counter.get();
+    }
+}

multithreading1/src/main/java/cn/bunny/jmh/JMHExample14.java

@@ -0,0 +1,49 @@
+package cn.bunny.jmh;
+
+import org.openjdk.jmh.annotations.*;
+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;
+
+import java.util.concurrent.BlockingDeque;
+import java.util.concurrent.LinkedBlockingDeque;
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@Fork(1)
+@Warmup(iterations = 5)
+@Measurement(iterations = 5)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Group)
+public class JMHExample14 {
+    private final static int VALUE = Integer.MAX_VALUE;
+    private BlockingDeque<Integer> queue;
+
+    public static void main(String[] args) throws RunnerException {
+        final Options options = new OptionsBuilder()
+                .include(JMHExample14.class.getSimpleName())
+                .build();
+        new Runner(options).run();
+    }
+
+    @Setup
+    public void init() {
+        this.queue = new LinkedBlockingDeque<>(10);
+    }
+
+    // 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
+    @GroupThreads(5)
+    @Group("blockingQueue")
+    @Benchmark
+    public void put() throws InterruptedException {
+        this.queue.put(VALUE);
+    }
+
+    @GroupThreads(5)
+    @Group("blockingQueue")
+    @Benchmark
+    public int take() throws InterruptedException {
+        return this.queue.take();
+    }
+}

multithreading1/src/main/java/cn/bunny/jmh/JMHExample15.java

@@ -0,0 +1,52 @@
+package cn.bunny.jmh;
+
+import org.openjdk.jmh.annotations.*;
+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;
+import org.openjdk.jmh.runner.options.TimeValue;
+
+import java.util.concurrent.BlockingDeque;
+import java.util.concurrent.LinkedBlockingDeque;
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@Fork(1)
+@Warmup(iterations = 5)
+@Measurement(iterations = 5)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Group)
+public class JMHExample15 {
+    private final static int VALUE = Integer.MAX_VALUE;
+    private BlockingDeque<Integer> queue;
+
+    public static void main(String[] args) throws RunnerException {
+        final Options options = new OptionsBuilder()
+                .include(JMHExample15.class.getSimpleName())
+                // 最长批次超时时间不能大于10秒
+                .timeout(TimeValue.seconds(10))
+                .build();
+        new Runner(options).run();
+    }
+
+    @Setup
+    public void init() {
+        this.queue = new LinkedBlockingDeque<>(10);
+    }
+
+    // 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
+    @GroupThreads(5)
+    @Group("blockingQueue")
+    @Benchmark
+    public void put() throws InterruptedException {
+        this.queue.put(VALUE);
+    }
+
+    @GroupThreads(5)
+    @Group("blockingQueue")
+    @Benchmark
+    public int take() throws InterruptedException {
+        return this.queue.take();
+    }
+}

multithreading1/src/main/java/cn/bunny/jmh/JMHExample16.java

@@ -0,0 +1,66 @@
+package cn.bunny.jmh;
+
+import org.openjdk.jmh.annotations.*;
+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;
+
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentSkipListMap;
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@Fork(1)
+@Warmup(iterations = 5)
+@Measurement(iterations = 5)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Group)
+public class JMHExample16 {
+    // 为type提供了4中可配置的参数值
+    @Param({"1", "2", "3", "4"})
+    private int type;
+
+    private Map<Integer, Integer> map;
+
+    public static void main(String[] args) throws RunnerException {
+        Options options = new OptionsBuilder()
+                .include(JMHExample16.class.getSimpleName())
+                .build();
+        new Runner(options).run();
+    }
+
+    @Setup
+    public void setup() {
+        switch (type) {
+            case 1:
+                this.map = new ConcurrentHashMap<>();
+                break;
+            case 2:
+                this.map = new ConcurrentSkipListMap<>();
+                break;
+            case 3:
+                this.map = new Hashtable<>();
+                break;
+            case 4:
+                this.map = Collections.synchronizedMap(new HashMap<>());
+                break;
+            default:
+                throw new IllegalArgumentException("Illegal map type");
+        }
+    }
+
+    @Group("g")
+    @GroupThreads(5)
+    @Benchmark
+    public void put() {
+        int num = new Random().nextInt();
+        this.map.put(num, num);
+    }
+
+    public Integer get() {
+        int num = new Random().nextInt();
+        return this.map.get(num);
+    }
+}

multithreading1/src/main/java/cn/bunny/jmh/JMHExample17.java

@@ -0,0 +1,52 @@
+package cn.bunny.jmh;
+
+import org.openjdk.jmh.annotations.*;
+import org.openjdk.jmh.profile.StackProfiler;
+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;
+import org.openjdk.jmh.runner.options.TimeValue;
+
+import java.util.concurrent.BlockingDeque;
+import java.util.concurrent.LinkedBlockingDeque;
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@Fork(1)
+@Warmup(iterations = 5)
+@Measurement(iterations = 5)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Group)
+public class JMHExample17 {
+    private final static int VALUE = Integer.MAX_VALUE;
+    private BlockingDeque<Integer> queue;
+
+    public static void main(String[] args) throws RunnerException {
+        final Options options = new OptionsBuilder()
+                .include(JMHExample17.class.getSimpleName())
+                .timeout(TimeValue.seconds(10))
+                .addProfiler(StackProfiler.class)
+                .build();
+        new Runner(options).run();
+    }
+
+    @Setup
+    public void init() {
+        this.queue = new LinkedBlockingDeque<>(10);
+    }
+
+    @GroupThreads(5)
+    @Group("blockingQueue")
+    @Benchmark
+    public void put() throws InterruptedException {
+        this.queue.put(VALUE);
+    }
+
+    @GroupThreads(5)
+    @Group("blockingQueue")
+    @Benchmark
+    public int take() throws InterruptedException {
+        return this.queue.take();
+    }
+}