Examples with LongAdder java.util.concurrent.atomic.LongAdder used on opensource projects

Example 6 with LongAdder

use of java.util.concurrent.atomic.LongAdder in project mapdb by jankotek.

the class ConcurrentHashMap8Test method testMappedForEachKeySequentially.

/**
     * Mapped forEachKeySequentially traverses the given
     * transformations of all keys
     */
public void testMappedForEachKeySequentially() {
    LongAdder adder = new LongAdder();
    ConcurrentHashMap<Long, Long> m = longMap();
    m.forEachKey(Long.MAX_VALUE, (Long x) -> Long.valueOf(4 * x.longValue()), (Long x) -> adder.add(x.longValue()));
    assertEquals(adder.sum(), 4 * SIZE * (SIZE - 1) / 2);
}

Example 7 with LongAdder

use of java.util.concurrent.atomic.LongAdder in project mapdb by jankotek.

the class ConcurrentHashMap8Test method testForEachValueInParallel.

/**
     * forEachValueInParallel traverses all values
     */
public void testForEachValueInParallel() {
    LongAdder adder = new LongAdder();
    ConcurrentHashMap<Long, Long> m = longMap();
    m.forEachValue(1L, (Long x) -> adder.add(x.longValue()));
    assertEquals(adder.sum(), SIZE * (SIZE - 1));
}

Example 8 with LongAdder

use of java.util.concurrent.atomic.LongAdder in project mapdb by jankotek.

the class ConcurrentHashMap8Test method testForEachSequentially.

/**
     * forEachSequentially traverses all mappings
     */
public void testForEachSequentially() {
    LongAdder adder = new LongAdder();
    ConcurrentHashMap<Long, Long> m = longMap();
    m.forEach(Long.MAX_VALUE, (Long x, Long y) -> adder.add(x.longValue() + y.longValue()));
    assertEquals(adder.sum(), 3 * SIZE * (SIZE - 1) / 2);
}

Example 9 with LongAdder

use of java.util.concurrent.atomic.LongAdder in project mapdb by jankotek.

the class ConcurrentHashMap8Test method testForEachKeySequentially.

/**
     * forEachKeySequentially traverses all keys
     */
public void testForEachKeySequentially() {
    LongAdder adder = new LongAdder();
    ConcurrentHashMap<Long, Long> m = longMap();
    m.forEachKey(Long.MAX_VALUE, (Long x) -> adder.add(x.longValue()));
    assertEquals(adder.sum(), SIZE * (SIZE - 1) / 2);
}

Example 10 with LongAdder

use of java.util.concurrent.atomic.LongAdder in project spring-boot by spring-projects.

the class BufferGaugeServiceSpeedTests method reader.

@Theory
public void reader(String input) throws Exception {
    iterate("writeReader");
    double rate = number / watch.getLastTaskTimeMillis() * 1000;
    System.err.println("Rate(" + count + ")=" + rate + ", " + watch);
    watch.start("readReader" + count);
    this.reader.findAll().forEach(new Consumer<Metric<?>>() {

        @Override
        public void accept(Metric<?> metric) {
            err.println(metric);
        }
    });
    final LongAdder total = new LongAdder();
    this.reader.findAll().forEach(new Consumer<Metric<?>>() {

        @Override
        public void accept(Metric<?> value) {
            total.add(value.getValue().intValue());
        }
    });
    watch.stop();
    System.err.println("Read(" + count + ")=" + watch.getLastTaskTimeMillis() + "ms");
    assertThat(0 < total.longValue()).isTrue();
}