Example usage for java.lang.management ManagementFactory getThreadMXBean

Introduction

In this page you can find the example usage for java.lang.management ManagementFactory getThreadMXBean.

Prototype

public static ThreadMXBean getThreadMXBean()

Source Link

Document

Returns the managed bean for the thread system of the Java virtual machine.

Usage

From source file:ro.nextreports.server.web.debug.InfoUtil.java

public static List<Info> getGeneralJVMInfo() {
    List<Info> infos = new ArrayList<Info>();

    RuntimeMXBean runtimeBean = ManagementFactory.getRuntimeMXBean();
    infos.add(new Info("uptime", "" + Duration.milliseconds(runtimeBean.getUptime()).toString()));
    infos.add(new Info("name", runtimeBean.getName()));
    infos.add(new Info("pid", runtimeBean.getName().split("@")[0]));

    OperatingSystemMXBean systemBean = ManagementFactory.getOperatingSystemMXBean();
    infos.add(new Info("os name", "" + systemBean.getName()));
    infos.add(new Info("os version", "" + systemBean.getVersion()));
    infos.add(new Info("system load average", "" + systemBean.getSystemLoadAverage()));
    infos.add(new Info("available processors", "" + systemBean.getAvailableProcessors()));

    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    infos.add(new Info("thread count", "" + threadBean.getThreadCount()));
    infos.add(new Info("peak thread count", "" + threadBean.getPeakThreadCount()));

    MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean();
    infos.add(new Info("heap memory used",
            FileUtils.byteCountToDisplaySize(memoryBean.getHeapMemoryUsage().getUsed())));
    infos.add(new Info("non-heap memory used",
            FileUtils.byteCountToDisplaySize(memoryBean.getNonHeapMemoryUsage().getUsed())));

    return infos;
}

From source file:org.asoem.greyfish.impl.environment.MyThreadSizeCalculator.java

@Override
protected long getCurrentThreadCPUTime() {
    return ManagementFactory.getThreadMXBean().getCurrentThreadCpuTime();
}

From source file:DeadLockDetector.java

/**
 * Create new DeadLockDetector with given values.
 * /*from  w  w  w . ja v a2s .  c  o  m*/
 * @param sleepTime
 * @param doWhenDL
 */
public DeadLockDetector(int sleepTime, byte doWhenDL) {
    super("DeadLockDetector");
    this.sleepTime = sleepTime * 1000;
    this.tmx = ManagementFactory.getThreadMXBean();
    this.doWhenDL = doWhenDL;
}

From source file:com.amazonaws.client.metrics.support.JmxInfoProviderSupport.java

@Override
public int getThreadCount() {
    ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    return threadMXBean.getThreadCount();
}

From source file:com.amazonaws.client.metrics.support.JmxInfoProviderSupport.java

@Override
public int getDaemonThreadCount() {
    ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    return threadMXBean.getDaemonThreadCount();
}

From source file:com.l2jfree.lang.L2Thread.java

public static List<String> getStats(Thread t) {
    List<String> list = new FastList<String>();

    list.add(t.toString() + " - ID: " + t.getId());
    list.add(" * State: " + t.getState());
    list.add(" * Alive: " + t.isAlive());
    list.add(" * Daemon: " + t.isDaemon());
    list.add(" * Interrupted: " + t.isInterrupted());
    for (ThreadInfo info : ManagementFactory.getThreadMXBean().getThreadInfo(new long[] { t.getId() }, true,
            true)) {//w w  w. ja  va2s .c  o  m
        for (MonitorInfo monitorInfo : info.getLockedMonitors()) {
            list.add("==========");
            list.add(" * Locked monitor: " + monitorInfo);
            list.add("\t[" + monitorInfo.getLockedStackDepth() + ".]: at " + monitorInfo.getLockedStackFrame());
        }

        for (LockInfo lockInfo : info.getLockedSynchronizers()) {
            list.add("==========");
            list.add(" * Locked synchronizer: " + lockInfo);
        }

        list.add("==========");
        for (StackTraceElement trace : info.getStackTrace())
            list.add("\tat " + trace);
    }

    return list;
}

From source file:com.thoughtworks.go.server.service.support.ServerRuntimeInformationProvider.java

@Override
public void appendInformation(InformationStringBuilder infoCollector) {
    osInfo(ManagementFactory.getOperatingSystemMXBean(), infoCollector);
    runtimeInfo(ManagementFactory.getRuntimeMXBean(), infoCollector);
    gcInfo(ManagementFactory.getGarbageCollectorMXBeans(), infoCollector);
    memoryInfo(ManagementFactory.getMemoryMXBean(), infoCollector);
    poolInfo(infoCollector);//from   w w  w.  j av a 2  s  .  c o  m
    threadInfo(ManagementFactory.getThreadMXBean(), infoCollector);
}

From source file:com.amazonaws.client.metrics.support.JmxInfoProviderSupport.java

@Override
public int getPeakThreadCount() {
    ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    return threadMXBean.getPeakThreadCount();
}

From source file:Main.java

/**
 * Get the thread info for the thread with the given ID. A null is returned
 * if no such thread info is found./*from   w ww .j  a v a  2 s  .  c  om*/
 * 
 * @param id
 *        the thread ID to search for
 * @return the thread info, or null if not found
 * @throws IllegalArgumentException
 *         if id <= 0
 */
public static ThreadInfo getThreadInfo(final long id) {
    final ThreadMXBean thbean = ManagementFactory.getThreadMXBean();

    // Get thread info with lock info, when available.
    if (!thbean.isObjectMonitorUsageSupported() || !thbean.isSynchronizerUsageSupported()) {
        return thbean.getThreadInfo(id);
    }

    final ThreadInfo[] infos = thbean.getThreadInfo(new long[] { id }, true, true);
    if (infos.length == 0)
        return null;
    return infos[0];
}

From source file:com.twosigma.beakerx.kernel.magic.command.functionality.TimeMagicCommand.java

public MagicCommandOutput time(String codeToExecute, Message message, int executionCount, boolean showResult) {
    CompletableFuture<TimeMeasureData> compileTime = new CompletableFuture<>();

    ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    long currentThreadId = Thread.currentThread().getId();

    Long startWallTime = System.nanoTime();
    Long startCpuTotalTime = threadMXBean.getCurrentThreadCpuTime();
    Long startUserTime = threadMXBean.getCurrentThreadUserTime();

    SimpleEvaluationObject simpleEvaluationObject = createSimpleEvaluationObject(codeToExecute, kernel, message,
            executionCount);/*from  w  ww. ja va  2 s . c  om*/
    if (!showResult) {
        simpleEvaluationObject.noResult();
    }

    TryResult either = kernel.executeCode(codeToExecute, simpleEvaluationObject);

    Long endWallTime = System.nanoTime();
    Long endCpuTotalTime = threadMXBean.getThreadCpuTime(currentThreadId);
    Long endUserTime = threadMXBean.getThreadUserTime(currentThreadId);

    compileTime.complete(new TimeMeasureData(endCpuTotalTime - startCpuTotalTime, endUserTime - startUserTime,
            endWallTime - startWallTime));
    String messageInfo = "CPU times: user %s, sys: %s, total: %s \nWall Time: %s\n";

    try {
        TimeMeasureData timeMeasuredData = compileTime.get();

        return new MagicCommandOutput(MagicCommandOutput.Status.OK,
                String.format(messageInfo, format(timeMeasuredData.getCpuUserTime()),
                        format(timeMeasuredData.getCpuTotalTime() - timeMeasuredData.getCpuUserTime()),
                        format(timeMeasuredData.getCpuTotalTime()), format(timeMeasuredData.getWallTime())),
                either, simpleEvaluationObject);

    } catch (InterruptedException | ExecutionException e) {
        return new MagicCommandOutput(MagicCommandOutput.Status.ERROR,
                "There occurs problem during measuring time for your statement.");
    }
}