Example usage for org.apache.commons.math.stat.descriptive SynchronizedSummaryStatistics SynchronizedSummaryStatistics

Introduction

In this page you can find the example usage for org.apache.commons.math.stat.descriptive SynchronizedSummaryStatistics SynchronizedSummaryStatistics.

Prototype

public SynchronizedSummaryStatistics() 

Source Link

Document

Construct a SynchronizedSummaryStatistics instance

Usage

From source file:com.fatwire.dta.sscrawler.reporting.reporters.PageletTimingsStatisticsReporter.java

public void addToReport(final ResultPage page) {
    pagesDone.incrementAndGet();/*from   ww w  .  ja v  a 2  s .  co  m*/
    total.addValue(page.getReadTime());
    final String pagename = page.getPageName();
    if (pagename != null) {
        SynchronizedSummaryStatistics ss = stats.get(pagename);
        if (ss == null) {
            ss = new SynchronizedSummaryStatistics();
            stats.put(pagename, ss);
            cached.put(pagename, CacheHelper.shouldCache(page.getResponseHeaders()));
        }
        ss.addValue(page.getReadTime());
    }

}

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From source file:com.netflix.curator.framework.recipes.atomic.TestDistributedAtomicLong.java

@Test
public void testSimulation() throws Exception {
    final int threadQty = 20;
    final int executionQty = 50;

    final AtomicInteger optimisticTries = new AtomicInteger();
    final AtomicInteger promotedLockTries = new AtomicInteger();
    final AtomicInteger failures = new AtomicInteger();
    final AtomicInteger errors = new AtomicInteger();

    final SummaryStatistics timingStats = new SynchronizedSummaryStatistics();
    List<Future<Void>> procs = Lists.newArrayList();
    ExecutorService executorService = Executors.newFixedThreadPool(threadQty);
    for (int i = 0; i < threadQty; ++i) {
        Callable<Void> proc = new Callable<Void>() {
            @Override//ww  w. ja  v a  2s. co m
            public Void call() throws Exception {
                doSimulation(executionQty, timingStats, optimisticTries, promotedLockTries, failures, errors);
                return null;
            }
        };
        procs.add(executorService.submit(proc));
    }

    for (Future<Void> f : procs) {
        f.get();
    }

    System.out.println("OptimisticTries: " + optimisticTries.get());
    System.out.println("PromotedLockTries: " + promotedLockTries.get());
    System.out.println("Failures: " + failures.get());
    System.out.println("Errors: " + errors.get());
    System.out.println();

    System.out.println("Avg time: " + timingStats.getMean());
    System.out.println("Max time: " + timingStats.getMax());
    System.out.println("Min time: " + timingStats.getMin());
    System.out.println("Qty: " + timingStats.getN());

    Assert.assertEquals(errors.get(), 0);
    Assert.assertTrue(optimisticTries.get() > 0);
    Assert.assertTrue(promotedLockTries.get() > 0);
}

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From source file:org.apache.sling.engine.benchmarks.AddValueToStatisticsDirectDriver.java

@Override
public void prepare(TestCase tc) {
    this.statistics = new SynchronizedSummaryStatistics();
}

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From source file:org.apache.sling.engine.benchmarks.AddValueToStatisticsViaExecutorDriver.java

@Override
public void prepare(TestCase tc) {
    this.statistics = new SynchronizedSummaryStatistics();
    this.operationExecutor = Executors.newSingleThreadExecutor();
}

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