java.util.concurrent.atomic.DoubleAdder Java Examples

The following examples show how to use java.util.concurrent.atomic.DoubleAdder. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source Project: j2objc   Author: google   File: DoubleAdderTest.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * adds by multiple threads produce correct sum
 */
public void testAddAndSumMT() throws Throwable {
    final int incs = 1000000;
    final int nthreads = 4;
    final ExecutorService pool = Executors.newCachedThreadPool();
    DoubleAdder a = new DoubleAdder();
    CyclicBarrier barrier = new CyclicBarrier(nthreads + 1);
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, barrier, incs));
    barrier.await();
    barrier.await();
    double total = (long)nthreads * incs;
    double sum = a.sum();
    assertEquals(sum, total);
    pool.shutdown();
}
 
Example #2
Source Project: dragonwell8_jdk   Author: alibaba   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
 
Example #3
Source Project: dragonwell8_jdk   Author: alibaba   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
 
Example #4
Source Project: dragonwell8_jdk   Author: alibaba   File: Serial.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
 
Example #5
Source Project: TencentKona-8   Author: Tencent   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
 
Example #6
Source Project: TencentKona-8   Author: Tencent   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
 
Example #7
Source Project: TencentKona-8   Author: Tencent   File: Serial.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
 
Example #8
Source Project: j2objc   Author: google   File: DoubleAdderTest.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * reset() causes subsequent sum() to return zero
 */
public void testReset() {
    DoubleAdder ai = new DoubleAdder();
    ai.add(2.0);
    assertEquals(2.0, ai.sum());
    ai.reset();
    assertEquals(0.0, ai.sum());
}
 
Example #9
Source Project: native-obfuscator   Author: radioegor146   File: DoubleAdderDemo.java    License: GNU General Public License v3.0 5 votes vote down vote up
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
 
Example #10
Source Project: native-obfuscator   Author: radioegor146   File: Serial.java    License: GNU General Public License v3.0 5 votes vote down vote up
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
 
Example #11
Source Project: jdk8u60   Author: chenghanpeng   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
 
Example #12
Source Project: jdk8u60   Author: chenghanpeng   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
 
Example #13
Source Project: jdk8u60   Author: chenghanpeng   File: Serial.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
 
Example #14
Source Project: coroutines   Author: esoco   File: ForkJoinExample.java    License: Apache License 2.0 5 votes vote down vote up
/***************************************
 * Main.
 *
 * @param rArgs
 */
public static void main(String[] rArgs)
{
	ThreadLocalRandom rRandom	    = ThreadLocalRandom.current();
	long[]			  aCoefficients = new long[TASK_SIZE];

	for (int i = 0; i < TASK_SIZE; i++)
	{
		aCoefficients[i] = rRandom.nextLong(0, 1024 * 1024);
	}

	Profiler aProfiler =
		new Profiler(ForkJoinExample.class.getSimpleName());

	ScopeFuture<DoubleAdder> aResult =
		produce(
			RESULT,
			scope -> computeOrSplit(scope, aCoefficients, 0, TASK_SIZE));

	System.out.printf("Sum: %f\n", aResult.get().sum());

	aProfiler.measure(
		String.format(
			"%d tasks\nwith a batch size of %d",
			TASK_SIZE,
			BATCH_SIZE));
	aProfiler.printSummary();
}
 
Example #15
Source Project: openjdk-jdk8u   Author: AdoptOpenJDK   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
 
Example #16
Source Project: openjdk-jdk8u   Author: AdoptOpenJDK   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
 
Example #17
Source Project: openjdk-jdk8u   Author: AdoptOpenJDK   File: Serial.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
 
Example #18
Source Project: micrometer   Author: micrometer-metrics   File: FixedBoundaryVictoriaMetricsHistogram.java    License: Apache License 2.0 5 votes vote down vote up
public FixedBoundaryVictoriaMetricsHistogram() {
    this.zeros = new AtomicLong(0);
    this.lower = new AtomicLong(0);
    this.upper = new AtomicLong(0);
    this.sum = new DoubleAdder();

    this.values = new AtomicReferenceArray<>(BUCKETS_COUNT);
}
 
Example #19
Source Project: micrometer   Author: micrometer-metrics   File: CumulativeDistributionSummary.java    License: Apache License 2.0 5 votes vote down vote up
public CumulativeDistributionSummary(Id id, Clock clock, DistributionStatisticConfig distributionStatisticConfig,
                                     double scale, boolean supportsAggregablePercentiles) {
    super(id, clock, distributionStatisticConfig, scale, supportsAggregablePercentiles);
    this.count = new AtomicLong();
    this.total = new DoubleAdder();
    this.max = new TimeWindowMax(clock, distributionStatisticConfig);
}
 
Example #20
Source Project: openjdk-jdk8u-backup   Author: AdoptOpenJDK   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
 
Example #21
Source Project: j2objc   Author: google   File: DoubleAdderTest.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * floatValue returns current value.
 */
public void testFloatValue() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(0.0f, ai.floatValue());
    ai.add(1.0);
    assertEquals(1.0f, ai.floatValue());
}
 
Example #22
Source Project: openjdk-jdk8u-backup   Author: AdoptOpenJDK   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
 
Example #23
Source Project: j2objc   Author: google   File: DoubleAdderTest.java    License: Apache License 2.0 5 votes vote down vote up
public void run() {
    try {
        barrier.await();
        DoubleAdder a = adder;
        for (int i = 0; i < incs; ++i)
            a.add(1.0);
        result = a.sum();
        barrier.await();
    } catch (Throwable t) { throw new Error(t); }
}
 
Example #24
Source Project: openjdk-jdk9   Author: AdoptOpenJDK   File: DoubleAdderDemo.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
 
Example #25
Source Project: j2objc   Author: google   File: DoubleAdderTest.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * intValue returns current value.
 */
public void testIntValue() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(0, ai.intValue());
    ai.add(1.0);
    assertEquals(1, ai.intValue());
}
 
Example #26
Source Project: openjdk-jdk9   Author: AdoptOpenJDK   File: Serial.java    License: GNU General Public License v2.0 5 votes vote down vote up
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
 
Example #27
Source Project: openjdk-jdk9   Author: AdoptOpenJDK   File: DoubleAdderTest.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * reset() causes subsequent sum() to return zero
 */
public void testReset() {
    DoubleAdder ai = new DoubleAdder();
    ai.add(2.0);
    assertEquals(2.0, ai.sum());
    ai.reset();
    assertEquals(0.0, ai.sum());
}
 
Example #28
Source Project: openjdk-jdk9   Author: AdoptOpenJDK   File: DoubleAdderTest.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * sumThenReset() returns sum; subsequent sum() returns zero
 */
public void testSumThenReset() {
    DoubleAdder ai = new DoubleAdder();
    ai.add(2.0);
    assertEquals(2.0, ai.sum());
    assertEquals(2.0, ai.sumThenReset());
    assertEquals(0.0, ai.sum());
}
 
Example #29
Source Project: j2objc   Author: google   File: DoubleAdderTest.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * sumThenReset() returns sum; subsequent sum() returns zero
 */
public void testSumThenReset() {
    DoubleAdder ai = new DoubleAdder();
    ai.add(2.0);
    assertEquals(2.0, ai.sum());
    assertEquals(2.0, ai.sumThenReset());
    assertEquals(0.0, ai.sum());
}
 
Example #30
Source Project: openjdk-jdk9   Author: AdoptOpenJDK   File: DoubleAdderTest.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * toString returns current value.
 */
public void testToString() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(Double.toString(0.0), ai.toString());
    ai.add(1.0);
    assertEquals(Double.toString(1.0), ai.toString());
}