Examples of OperatingSystemMXBean

Examples of java.lang.management.OperatingSystemMXBean

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    protected Object doExecute() throws Exception {
        int maxNameLen;

        RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
        OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
        ThreadMXBean threads = ManagementFactory.getThreadMXBean();
        MemoryMXBean mem = ManagementFactory.getMemoryMXBean();
        ClassLoadingMXBean cl = ManagementFactory.getClassLoadingMXBean();

        //
        // print Karaf informations
        //
        maxNameLen = 25;
        System.out.println("Karaf");
        printValue("Karaf home", maxNameLen, System.getProperty("karaf.home"));
        printValue("Karaf base", maxNameLen, System.getProperty("karaf.base"));
        printValue("OSGi Framework", maxNameLen, bundleContext.getBundle(0).getSymbolicName() + " - " +
                bundleContext.getBundle(0).getVersion());
        System.out.println();

        System.out.println("JVM");
        printValue("Java Virtual Machine", maxNameLen, runtime.getVmName() + " version " + runtime.getVmVersion());
        printValue("Version", maxNameLen, System.getProperty("java.version"));
        printValue("Vendor", maxNameLen, runtime.getVmVendor());
        printValue("Uptime", maxNameLen, printDuration(runtime.getUptime()));
        try {
            printValue("Process CPU time", maxNameLen, printDuration(getSunOsValueAsLong(os, "getProcessCpuTime") / 1000000));
        } catch (Throwable t) {
        }
        printValue("Total compile time", maxNameLen, printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime()));

        System.out.println("Threads");
        printValue("Live threads", maxNameLen, Integer.toString(threads.getThreadCount()));
        printValue("Daemon threads", maxNameLen, Integer.toString(threads.getDaemonThreadCount()));
        printValue("Peak", maxNameLen, Integer.toString(threads.getPeakThreadCount()));
        printValue("Total started", maxNameLen, Long.toString(threads.getTotalStartedThreadCount()));

        System.out.println("Memory");
        printValue("Current heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getUsed()));
        printValue("Maximum heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getMax()));
        printValue("Committed heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getCommitted()));
        printValue("Pending objects", maxNameLen, Integer.toString(mem.getObjectPendingFinalizationCount()));
        for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
            String val = "Name = '" + gc.getName() + "', Collections = " + gc.getCollectionCount() + ", Time = " + printDuration(gc.getCollectionTime());
            printValue("Garbage collector", maxNameLen, val);
        }

        System.out.println("Classes");
        printValue("Current classes loaded", maxNameLen, printLong(cl.getLoadedClassCount()));
        printValue("Total classes loaded", maxNameLen, printLong(cl.getTotalLoadedClassCount()));
        printValue("Total classes unloaded", maxNameLen, printLong(cl.getUnloadedClassCount()));

        System.out.println("Operating system");
        printValue("Name", maxNameLen, os.getName() + " version " + os.getVersion());
        printValue("Architecture", maxNameLen, os.getArch());
        printValue("Processors", maxNameLen, Integer.toString(os.getAvailableProcessors()));
        try {
            printValue("Total physical memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getTotalPhysicalMemorySize")));
            printValue("Free physical memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getFreePhysicalMemorySize")));
            printValue("Committed virtual memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getCommittedVirtualMemorySize")));
            printValue("Total swap space", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getTotalSwapSpaceSize")));
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Examples of java.lang.management.OperatingSystemMXBean

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public class JVMProfiler {
  public static void main(String[] args) {
   
    // get the OperatingSystemMXBean "singelton"
    //OperatingSystemMXBean interface defines  methods for accessing system properties
    OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();
   
    for (Method method : operatingSystemMXBean.getClass().getDeclaredMethods())  {
    method.setAccessible(true);
    if (method.getName().startsWith("get")&& Modifier.isPublic(method.getModifiers())) {
    Object value;
    try {
    value = method.invoke(operatingSystemMXBean);
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Examples of java.lang.management.OperatingSystemMXBean

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    info.setIp(ReportUtil.getIp());
    info.setJvmTotalMemory(Runtime.getRuntime().totalMemory());
    info.setJvmFreeMemory(Runtime.getRuntime().freeMemory());
    info.setJvmMaxMemory(Runtime.getRuntime().maxMemory());
   
    OperatingSystemMXBean osmxb = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
    info.setOsName(osmxb.getName());
    info.setOsVersion(osmxb.getVersion());
    info.setSystemLoadAverage(osmxb.getSystemLoadAverage());
   
    ThreadMXBean tmxb = ManagementFactory.getThreadMXBean();
    info.setJvmThreadCount(tmxb.getThreadCount());
    info.setJvmPeakThreadCount(tmxb.getPeakThreadCount());
  }
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Examples of java.lang.management.OperatingSystemMXBean

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    }

    private static long getOSMemory (String methodName, String warning) {
        long ram = 0;

        OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();
        Method m;
        try {
            m = operatingSystemMXBean.getClass().getDeclaredMethod(methodName);
            m.setAccessible(true);
            Object value = m.invoke(operatingSystemMXBean);
            if (value != null) {
                ram = Long.valueOf(value.toString()) / 1024 / 1024;
            } else {
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Examples of java.lang.management.OperatingSystemMXBean

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   */
  public static SimpleOrderedMap<Object> getSystemInfo() throws Exception
  {
    SimpleOrderedMap<Object> info = new SimpleOrderedMap<Object>();
   
    OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
    info.add( "name", os.getName() );
    info.add( "version", os.getVersion() );
    info.add( "arch", os.getArch() );

    // Java 1.6
    addGetterIfAvaliable( os, "systemLoadAverage", info );

    // com.sun.management.UnixOperatingSystemMXBean
    addGetterIfAvaliable( os, "openFileDescriptorCount", info );
    addGetterIfAvaliable( os, "maxFileDescriptorCount", info );

    // com.sun.management.OperatingSystemMXBean
    addGetterIfAvaliable( os, "committedVirtualMemorySize", info );
    addGetterIfAvaliable( os, "totalPhysicalMemorySize", info );
    addGetterIfAvaliable( os, "totalSwapSpaceSize", info );
    addGetterIfAvaliable( os, "processCpuTime", info );

    try {
      if( !os.getName().toLowerCase(Locale.ENGLISH).startsWith( "windows" ) ) {
        // Try some command line things
        info.add( "uname",  execute( "uname -a" ) );
        info.add( "ulimit", execute( "ulimit -n" ) );
        info.add( "uptime", execute( "uptime" ) );
      }
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Examples of java.lang.management.OperatingSystemMXBean

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                .isEqualTo(0.1);
    }

    @Test
    public void validateFileDescriptorRatioPresenceOnNixPlatforms() throws Exception {
        OperatingSystemMXBean osBean = ManagementFactory.getOperatingSystemMXBean();
        assumeTrue(osBean instanceof com.sun.management.UnixOperatingSystemMXBean);
       
        assertThat(new FileDescriptorRatioGauge().getValue())
                .isGreaterThanOrEqualTo(0.0)
                .isLessThanOrEqualTo(1.0);
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Examples of java.lang.management.OperatingSystemMXBean

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    reader.close();
  }

  public static void setupJvmMetrics() {
    final MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
    final OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();

    Metrics.newGauge(new MetricName(ORG_APACHE_BLUR, SYSTEM, LOAD_AVERAGE), new Gauge<Double>() {
      @Override
      public Double value() {
        return operatingSystemMXBean.getSystemLoadAverage();
      }
    });
    Metrics.newGauge(new MetricName(ORG_APACHE_BLUR, JVM, HEAP_USED), new Gauge<Long>() {
      @Override
      public Long value() {
        MemoryUsage usage = memoryMXBean.getHeapMemoryUsage();
        return usage.getUsed();
      }
    });
    Method processCpuTimeMethod = null;
    for (Method method : operatingSystemMXBean.getClass().getDeclaredMethods()) {
      if (method.getName().equals("getProcessCpuTime")) {
        method.setAccessible(true);
        processCpuTimeMethod = method;
      }
    }
    final double availableProcessors = operatingSystemMXBean.getAvailableProcessors();
    if (processCpuTimeMethod != null) {
      final Method pctm = processCpuTimeMethod;
      Metrics.newGauge(new MetricName(ORG_APACHE_BLUR, JVM, CPU_USED), new Gauge<Double>() {
        private long start = System.nanoTime();
        private long lastCpuTime = getProcessCputTime(pctm, operatingSystemMXBean);
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Examples of java.lang.management.OperatingSystemMXBean

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  }

  @Override
  public Map<String, String> getRecentHealthReport()
  {
    OperatingSystemMXBean osMxBean = ManagementFactory
        .getOperatingSystemMXBean();
    long freeJvmMemory = Runtime.getRuntime().freeMemory();
    long totalJvmMemory = Runtime.getRuntime().totalMemory();
    int availableCPUs = osMxBean.getAvailableProcessors();
    double avgSystemLoad = osMxBean.getSystemLoadAverage();
    long freePhysicalMemory = Long.MAX_VALUE;

    try
    {
      // if( osMxBean instanceof com.sun.management.OperatingSystemMXBean)
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Examples of java.lang.management.OperatingSystemMXBean

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        map.put("runtime.totalStartedThreadCount", threadMxBean.getTotalStartedThreadCount());
        map.put("runtime.threadCount", Integer.valueOf(threadMxBean.getThreadCount()).longValue());
        map.put("runtime.peakThreadCount", Integer.valueOf(threadMxBean.getPeakThreadCount()).longValue());
        map.put("runtime.daemonThreadCount", Integer.valueOf(threadMxBean.getDaemonThreadCount()).longValue());

        OperatingSystemMXBean osMxBean = ManagementFactory.getOperatingSystemMXBean();
        map.put("osMemory.freePhysicalMemory", get(osMxBean, "getFreePhysicalMemorySize", 0L));
        map.put("osMemory.committedVirtualMemory", get(osMxBean, "getCommittedVirtualMemorySize", 0L));
        map.put("osMemory.totalPhysicalMemory", get(osMxBean, "getTotalPhysicalMemorySize", 0L));

        map.put("osSwap.freeSwapSpace", get(osMxBean, "getFreeSwapSpaceSize", 0L));
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Examples of java.lang.management.OperatingSystemMXBean

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  public DefaultHealthReportProvider() {
  }

  @Override
  public Map<String, String> getRecentHealthReport() {
    OperatingSystemMXBean osMxBean = ManagementFactory.getOperatingSystemMXBean();
    long freeJvmMemory = Runtime.getRuntime().freeMemory();
    long totalJvmMemory = Runtime.getRuntime().totalMemory();
    int availableCPUs = osMxBean.getAvailableProcessors();
    double avgSystemLoad = osMxBean.getSystemLoadAverage();
    long freePhysicalMemory = Long.MAX_VALUE;

    try {
      // if( osMxBean instanceof com.sun.management.OperatingSystemMXBean)
      // {
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