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Java OperatingSystemMXBean.getAvailableProcessors方法代碼示例

本文整理匯總了Java中com.sun.management.OperatingSystemMXBean.getAvailableProcessors方法的典型用法代碼示例。如果您正苦於以下問題：Java OperatingSystemMXBean.getAvailableProcessors方法的具體用法？Java OperatingSystemMXBean.getAvailableProcessors怎麽用？Java OperatingSystemMXBean.getAvailableProcessors使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類com.sun.management.OperatingSystemMXBean的用法示例。


在下文中一共展示了OperatingSystemMXBean.getAvailableProcessors方法的11個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: reportCPU

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
private Optional<Double> reportCPU(OperatingSystemMXBean operatingSystemMXBean, RuntimeMXBean runtimeMXBean) {
    int availableProcessors = divideByNbCores ? operatingSystemMXBean.getAvailableProcessors() : 1;
    long upTime = runtimeMXBean.getUptime();
    long processCpuTime = operatingSystemMXBean.getProcessCpuTime();

    if (lastMeasures == null
            || lastMeasures.availableProcessors != availableProcessors
            || lastMeasures.processCpuTime < 0) {
        lastMeasures = new Measures(availableProcessors, upTime, processCpuTime);
        return Optional.empty();
    }

    long elapsedCpu = processCpuTime - lastMeasures.processCpuTime;
    long elapsedTime = upTime - lastMeasures.upTime;
    lastMeasures = new Measures(availableProcessors, upTime, processCpuTime);

    return Optional.of(Math.min(99D, elapsedCpu / (elapsedTime * 10000D * availableProcessors)));
}
開發者ID:jotak，項目名稱:hawkular-java-toolbox，代碼行數:19，代碼來源:CPUMonitoring.java

示例2: showCPU

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
public static void showCPU() {
		OperatingSystemMXBean osbean = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
		RuntimeMXBean runbean = ManagementFactory.getRuntimeMXBean();
		long bfprocesstime = osbean.getProcessCpuTime();
		long bfuptime = runbean.getUptime();
		long ncpus = osbean.getAvailableProcessors();
//		for (int i = 0; i < 1000000; ++i) {
//			ncpus = osbean.getAvailableProcessors();
//		}
		long afprocesstime = osbean.getProcessCpuTime();
		long afuptime = runbean.getUptime();
		float cal = (afprocesstime - bfprocesstime) / ((afuptime - bfuptime) * 10000f);
		float usage = Math.min(99f, cal);
		System.out.println("Calculation: " + cal);
		System.out.println("CPU Usage: " + usage);
	}
開發者ID:callakrsos，項目名稱:Gargoyle，代碼行數:17，代碼來源:CPUUsageTest.java

示例3: getCartridgeStatistics

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
public CartridgeStatistics getCartridgeStatistics() throws IOException {
    OperatingSystemMXBean osBean = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
    double totalMemory = (double) (osBean.getTotalPhysicalMemorySize() / MB);
    double usedMemory = (double) ((totalMemory - (osBean.getFreePhysicalMemorySize() / MB)));
    double loadAvg = (double) osBean.getSystemLoadAverage();
    // assume system cores = available cores to JVM
    int cores = osBean.getAvailableProcessors();
    double memoryConsumption = (usedMemory / totalMemory) * 100;
    double loadAvgPercentage = (loadAvg / cores) * 100;

    if (log.isDebugEnabled()) {
        log.debug("Memory consumption: [totalMemory] " + totalMemory + "Mb [usedMemory] " + usedMemory + "Mb: " + memoryConsumption + "%");
        log.debug("Processor consumption: [loadAverage] " + loadAvg + " [cores] " + cores + ": " + loadAvgPercentage + "%");
    }

    return (new CartridgeStatistics(memoryConsumption, loadAvgPercentage));
}
開發者ID:apache，項目名稱:stratos，代碼行數:18，代碼來源:HealthStatisticsReader.java

示例4: getRuntimeInfo

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
@Override
public RuntimeInfo getRuntimeInfo(SS serverStataus)
    throws IOException {
    MBeanServerConnection mbsc = serverStataus.getConnector().getMBeanServerConnection();
    RuntimeMXBean rmbean = newPlatformMXBeanProxy(mbsc, RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);

    OperatingSystemMXBean osbean = newPlatformMXBeanProxy(mbsc, OPERATING_SYSTEM_MXBEAN_NAME, OperatingSystemMXBean.class);

    HashMap<String, String> map = new HashMap<String, String>(rmbean.getSystemProperties());

    RuntimeInfo rti = new RuntimeInfo(rmbean.getBootClassPath(),
                                      rmbean.getClassPath(),
                                      rmbean.getInputArguments(),
                                      rmbean.getLibraryPath(),
                                      rmbean.getName(),
                                      map,
                                      osbean.getAvailableProcessors(),
                                      osbean.getSystemLoadAverage());
    return rti;
}
開發者ID:armangal，項目名稱:SmartMonitoring，代碼行數:21，代碼來源:AbstractJMXGeneralStats.java

示例5: getCpu

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
protected double getCpu() {
    OperatingSystemMXBean osbean = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
    RuntimeMXBean runbean = java.lang.management.ManagementFactory.getRuntimeMXBean();
    long uptime = runbean.getUptime();
    long processCpuTime = osbean.getProcessCpuTime();
    //cpu count
    int processors = osbean.getAvailableProcessors();
    //uptime in milliseconds ,and processCpuTime in nao seconds
    double cpu = (processCpuTime - lastProcessCpuTime) / ((uptime - lastUptime) * 10000f * processors);
    lastProcessCpuTime = processCpuTime;
    lastUptime = uptime;
    return (int) cpu;
}
開發者ID:xushaomin，項目名稱:apple-boot，代碼行數:14，代碼來源:JvmMonitor.java

示例6: PerformanceStatus

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
public PerformanceStatus() {
    OperatingSystemMXBean bean= (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
    RuntimeMXBean runtimeBean = ManagementFactory.getRuntimeMXBean();

    MemoryMXBean memBean = ManagementFactory.getMemoryMXBean();
    heapMemoryUsage= memBean.getHeapMemoryUsage();
    nonHeapMemoryUsage = memBean.getNonHeapMemoryUsage();

    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    currentThreadCount=threadBean.getThreadCount();
    daemonThreadCount= threadBean.getDaemonThreadCount();
    beanCreatedThreadCount= threadBean.getTotalStartedThreadCount();
    peakThreadCount = threadBean.getPeakThreadCount();

    ClassLoadingMXBean classLoadingBean = ManagementFactory.getClassLoadingMXBean();
    loadedClassCount=classLoadingBean.getLoadedClassCount();
    totalLoadedClassCount=classLoadingBean.getTotalLoadedClassCount();
    unloadedClassCount=classLoadingBean.getUnloadedClassCount();
    committedVirtualMemorySize = (bean.getCommittedVirtualMemorySize());
    freePhysicalMemorySize =(bean.getFreePhysicalMemorySize());
    totalPhysicalMemorySize =(bean.getTotalPhysicalMemorySize());

    freeSwapSpaceSize =(bean.getFreeSwapSpaceSize());
    totalSwapSpaceSize =(bean.getTotalSwapSpaceSize());
    processCpuTime =(bean.getProcessCpuTime());
    availableProcessors =bean.getAvailableProcessors();
    processCpuLoad =bean.getProcessCpuLoad();

    systemCpuLoad =bean.getSystemCpuLoad();
    systemLoadAverage =bean.getSystemLoadAverage();
    appStartUpTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date(runtimeBean.getStartTime()));
    runtime = (new Date().getTime() - runtimeBean.getStartTime())/1000;
    os = bean.getName()+" "+bean.getVersion();

    if(HostInfo.isLinux()){
        try {
            availableMemory = (LinuxInfoUtil.getAvailableMemKB()*1024l);
        } catch (Throwable ignored) {
        }
    }

    File[] roots = File.listRoots();
    for(File file:roots){
        rootFiles.add(new RootFile(file.getAbsolutePath(),file.getTotalSpace(),file.getFreeSpace()));
    }
    getGCStatus();
}
開發者ID:ctripcorp，項目名稱:cornerstone，代碼行數:48，代碼來源:PerformanceStatus.java

示例7: VMSummary

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
public VMSummary(){
    MemoryMXBean bean = ManagementFactory.getMemoryMXBean();
    MemoryUsage u = bean.getHeapMemoryUsage();
    heapCommitedMemory= (u.getCommitted());
    heapUsedMemory=(u.getUsed());
    heapMaxMemory=(u.getMax());

    u = bean.getNonHeapMemoryUsage();
    nonHeapCommitedMemory=(u.getCommitted());
    nonHeapUsedMemory=(u.getUsed());
    nonHeapMaxMemory=(u.getMax());

    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    currentThreadCount=threadBean.getThreadCount();
    daemonThreadCount= threadBean.getDaemonThreadCount();
    totalStartedThreadCount= threadBean.getTotalStartedThreadCount();
    peakThreadCount = threadBean.getPeakThreadCount();

    ClassLoadingMXBean classLoadingBean = ManagementFactory.getClassLoadingMXBean();
    loadedClassCount=classLoadingBean.getLoadedClassCount();
    totalLoadedClassCount=classLoadingBean.getTotalLoadedClassCount();
    unloadedClassCount=classLoadingBean.getUnloadedClassCount();
    getGCStatus();

    RuntimeMXBean runtimeBean = ManagementFactory.getRuntimeMXBean();
    classPath = runtimeBean.getClassPath();
    libraryPath = runtimeBean.getLibraryPath();
    vmOptions = TextUtils.join(" ",runtimeBean.getInputArguments());
    bootClassPath = runtimeBean.getBootClassPath();
    upTime = runtimeBean.getUptime();

    vmName=runtimeBean.getVmName();
    vmVendor= runtimeBean.getVmVendor();


    OperatingSystemMXBean osBean= (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();

    processCpuTime = osBean.getProcessCpuTime();

    jdkVersion=System.getProperty("java.version");
    jitCompiler=System.getProperty("java.vm.name");

    os = osBean.getName() + " "+osBean.getVersion();
    osArch = osBean.getArch();
    availableProcessors = osBean.getAvailableProcessors();

     commitedVirtualMemory = osBean.getCommittedVirtualMemorySize();
    freePhysicalMemorySize =(osBean.getFreePhysicalMemorySize());
    totalPhysicalMemorySize =(osBean.getTotalPhysicalMemorySize());

    freeSwapSpaceSize =(osBean.getFreeSwapSpaceSize());
    totalSwapSpaceSize =(osBean.getTotalSwapSpaceSize());

    List<GarbageCollectorMXBean> beans = ManagementFactory.getGarbageCollectorMXBeans();
    gcInfos = new ArrayList<>(beans.size());
    for (GarbageCollectorMXBean b : beans) {
        GCBean gcBean = new GCBean();
        gcBean.name =b.getName();
        gcBean.gcCount = b.getCollectionCount();
        gcBean.gcTime = b.getCollectionTime();
        gcInfos.add(gcBean);
    }

}
開發者ID:ctripcorp，項目名稱:cornerstone，代碼行數:65，代碼來源:VMSummary.java

示例8: getCPU

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
public static int getCPU() {
	OperatingSystemMXBean os = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
	return os.getAvailableProcessors();
}
開發者ID:NJDaeger，項目名稱:EssentialCommands，代碼行數:5，代碼來源:Server.java

示例9: run

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
@Override
public void run() {
	try {
		while (runLogLoop) {
			try {
				final EventLogManager eventLogManager = EventLogManager.getInstance();
				// Code inspiré de http://knight76.blogspot.fr/2009/05/how-to-get-java-cpu-usage-jvm-instance.html et http://www.docjar.com/html/api/sun/tools/jconsole/SummaryTab$Result.java.html
				final SystemEventLog systemEventLog = eventLogManager.addEventLog(SystemEventLog.class);
				final OperatingSystemMXBean osMXBean = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
				final long processCpuTime = osMXBean.getProcessCpuTime();
				final RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
				final long uptime = runtimeMXBean.getUptime();
				final int availableProcessors = osMXBean.getAvailableProcessors();
				final MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
				systemEventLog.setHeapMemoryUsed(memoryMXBean.getHeapMemoryUsage().getUsed());
				systemEventLog.setNonHeapMemoryUsed(memoryMXBean.getNonHeapMemoryUsage().getUsed());
				final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
				systemEventLog.setThreadCount(threadMXBean.getThreadCount());
				systemEventLog.setPeakThreadCount(threadMXBean.getPeakThreadCount());

				// Compute the cpuUsage
				if (prevUptime > 0L && uptime > prevUptime) {
					// elapsedCpu is in ns and elapsedTime is in ms.
					final long elapsedCpu = processCpuTime - prevProcessCpuTime;
					final long elapsedTime = uptime - prevUptime;
					// cpuUsage could go higher than 100% because elapsedTime
					// and elapsedCpu are not fetched simultaneously. Limit to
					// 99% to avoid Plotter showing a scale from 0% to 200%.
					systemEventLog.setCpuUsage(Math.min(100F, elapsedCpu / (elapsedTime * 10000F * availableProcessors))); // elapsedCpu / (elapsedTime * 1000F * 1000F * availableProcessors)) * 100 => pour l'avoir en %
				}
				systemEventLog.setUptime(uptime);
				systemEventLog.setProcessCpuTime(processCpuTime);
				systemEventLog.setAvailableProcessors(availableProcessors);

				// We now log all threads in RUNNABLE or BLOCKED state
				final ThreadInfo[] allThreads = threadMXBean.dumpAllThreads(false, false);
				final List<SystemEventLog.Thread> loggedThreads = new LinkedList<SystemEventLog.Thread>();
				for (final ThreadInfo threadInfo : allThreads) {
					if (threadInfo != null) {	// It seems that sometime (with JRockit) threadInfo is null
						final State threadState = threadInfo.getThreadState();
						if ((threadState == State.BLOCKED || threadState == State.RUNNABLE) && PatternUtils.matches(threadInfo.getThreadName(), threadNameIncludes, threadNameExcludes)) {
							final long threadId = threadInfo.getThreadId();
							loggedThreads.add(new SystemEventLog.Thread(threadInfo, threadMXBean.getThreadUserTime(threadId), threadMXBean.getThreadCpuTime(threadId)));
						}
					}
				}
				systemEventLog.setBlockedOrRunningThreads(loggedThreads.toArray(new SystemEventLog.Thread[loggedThreads.size()]));

				eventLogManager.fire(systemEventLog);
				SystemEventLogger.this.prevUptime = uptime;
				SystemEventLogger.this.prevProcessCpuTime = processCpuTime;
				Thread.sleep(cpuComputationDeltaMillis);
			} catch (final InterruptedException e) {
				throw new RuntimeException(e);
			}
		}
	} finally {
		stop();
	}
}
開發者ID:iorga-group，項目名稱:webapp-watcher，代碼行數:61，代碼來源:SystemEventLogger.java

示例10: PerformanceMonitor

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
private PerformanceMonitor() {
	osBean = (OperatingSystemMXBean) ManagementFactory
			.getOperatingSystemMXBean();

	availableProcessors = osBean.getAvailableProcessors();
}
開發者ID:SQUIDwarrior，項目名稱:critters，代碼行數:7，代碼來源:PerformanceMonitor.java

示例11: PerformanceMonitor

import com.sun.management.OperatingSystemMXBean; //導入方法依賴的package包/類
public PerformanceMonitor()
{
  ArrayList<MemoryPoolMXBean> hb = new ArrayList();
  for (MemoryPoolMXBean p : ManagementFactory.getMemoryPoolMXBeans()) {
    if (p.getType() == MemoryType.HEAP) {
      hb.add(p);
    }
  }
  hb.trimToSize();
  hbean_ = hb;
  num_mem_ = hbean_.size();

  heap_start_ = new ArrayList(num_mem_);
  heap_peak_  = new ArrayList(num_mem_);
  heap_last_  = new ArrayList(num_mem_);

  heap_committed_sum_ = 0;
  heap_used_sum_ = 0;

  for (int i=0 ; i<num_mem_ ; i++) {
    MemoryPoolMXBean mb = hbean_.get(i);
    mb.resetPeakUsage();
    heap_peak_.add(mb.getPeakUsage());

    MemoryUsage mu = mb.getUsage();
    heap_start_.add(mu);
    heap_last_.add(mu);
    heap_committed_sum_ += mu.getCommitted()>>>MB_SHIFT;
    heap_used_sum_ += mu.getUsed()>>>MB_SHIFT;
  }
  heap_cnt_ = 1;

  gcbeans_ = ManagementFactory.getGarbageCollectorMXBeans();
  num_gc_ = gcbeans_.size();
  gc_time_ = new long[num_gc_];
  gc_last_ = new long[num_gc_];
  gc_cnt_  = new long[num_gc_];
  for (int i=0 ; i<num_gc_ ; i++) {
    GarbageCollectorMXBean gc = gcbeans_.get(i);
    gc_cnt_[i]  = gc.getCollectionCount();
    gc_time_[i] = gc.getCollectionTime();
    gc_last_[i] = gc_time_[i];
  }

  osbean_ = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
  cpu_start_  = osbean_.getProcessCpuTime();
  cpu_last_   = cpu_start_;
  num_cpu_    = osbean_.getAvailableProcessors();
  load_last_  = osbean_.getSystemLoadAverage();
  swap_total_ = osbean_.getTotalSwapSpaceSize();
  swap_last_  = osbean_.getFreeSwapSpaceSize();

  thbean_ = (ThreadMXBean) ManagementFactory.getThreadMXBean();
  th_daemon_ = thbean_.getDaemonThreadCount();
  th_peak_   = thbean_.getPeakThreadCount();
  th_count_  = thbean_.getThreadCount();
  th_total_started_ = thbean_.getTotalStartedThreadCount();

  time_start_ = System.currentTimeMillis();
  time_last_  = time_start_;

  time_prev_ = time_last_;
  cpu_prev_  = cpu_last_;

  instant_gc_  = 0.0;
  instant_cpu_ = 0.0;
}
開發者ID:Titousensei，項目名稱:sisyphus，代碼行數:68，代碼來源:PerformanceMonitor.java


注：本文中的com.sun.management.OperatingSystemMXBean.getAvailableProcessors方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。