Examples with MemoryMXBean java.lang.management.MemoryMXBean used on opensource projects

Example 16 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project ignite by apache.

the class GridManagerMxBeanIllegalArgumentHandleTest method setUp.

/** {@inheritDoc} Changes field to always failing mock */
@Override
public void setUp() throws Exception {
    super.setUp();
    try {
        final MemoryMXBean memoryMXBean = createAlwaysFailingMxBean();
        memMxBeanField = createAccessibleMemField();
        mxBeanToRestore = memMxBeanField.get(null);
        memMxBeanField.set(null, memoryMXBean);
        correctSetupOfTestPerformed = memMxBeanField.get(null) == memoryMXBean;
    } catch (Exception e) {
        e.printStackTrace();
    }
}

Example 17 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project karaf by apache.

the class EnvironmentDumpProvider method dumpGCInformation.

private void dumpGCInformation(final PrintWriter outPW) {
    final List<GarbageCollectorMXBean> mxBeans = ManagementFactory.getGarbageCollectorMXBeans();
    if (null == mxBeans || mxBeans.isEmpty()) {
        return;
    }
    final MemoryMXBean memoryMxBean = ManagementFactory.getMemoryMXBean();
    if (memoryMxBean != null) {
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "pending objects", formatLong(memoryMxBean.getObjectPendingFinalizationCount())).println();
    }
    final String gcFormat = "'%1$s' collections: %2$s\ttime: %3$s";
    outPW.println();
    for (final GarbageCollectorMXBean mxBean : mxBeans) {
        if (null == mxBean) {
            continue;
        }
        outPW.printf(KEY_VALUE_FORMAT, "Garbage Collectors", String.format(gcFormat, mxBean.getName(), formatLong(mxBean.getCollectionCount()), printDuration(mxBean.getCollectionTime()))).println();
    }
}

Example 18 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project karaf by apache.

the class InfoAction method execute.

@Override
public Object execute() 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 version", maxNameLen, System.getProperty("karaf.version"));
    printValue("Karaf home", maxNameLen, System.getProperty("karaf.home"));
    printValue("Karaf base", maxNameLen, System.getProperty("karaf.base"));
    String osgi = getOsgiFramework();
    if (osgi != null) {
        printValue("OSGi Framework", maxNameLen, osgi);
    }
    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("Pid", maxNameLen, getPid());
    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")));
        printValue("Free swap space", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getFreeSwapSpaceSize")));
    } catch (Throwable t) {
    }
    //Display Information from external information providers.
    Map<String, Map<Object, Object>> properties = new HashMap<>();
    if (infoProviders != null) {
        // dump all properties to Map, KARAF-425
        for (InfoProvider provider : infoProviders) {
            if (!properties.containsKey(provider.getName())) {
                properties.put(provider.getName(), new Properties());
            }
            properties.get(provider.getName()).putAll(provider.getProperties());
        }
        List<String> sections = new ArrayList<>(properties.keySet());
        Collections.sort(sections);
        for (String section : sections) {
            List<Object> keys = new ArrayList<>(properties.get(section).keySet());
            if (keys.size() > 0) {
                System.out.println(section);
                keys.sort(Comparator.comparing(String::valueOf));
                for (Object key : keys) {
                    printValue(String.valueOf(key), maxNameLen, String.valueOf(properties.get(section).get(key)));
                }
            }
        }
    }
    return null;
}

Example 19 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project Gargoyle by callakrsos.

the class CPUUsageTest method showMemory.

/*
	 * 메모리 사용량
	 */
public void showMemory() {
    MemoryMXBean membean = ManagementFactory.getMemoryMXBean();
    MemoryUsage heap = membean.getHeapMemoryUsage();
    System.out.println("Heap Memory: " + heap.toString());
    MemoryUsage nonheap = membean.getNonHeapMemoryUsage();
    System.out.println("NonHeap Memory: " + nonheap.toString());
}

Example 20 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project storm by apache.

the class SystemBolt method prepare.

@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public void prepare(final Map topoConf, TopologyContext context, OutputCollector collector) {
    if (_prepareWasCalled && !"local".equals(topoConf.get(Config.STORM_CLUSTER_MODE))) {
        throw new RuntimeException("A single worker should have 1 SystemBolt instance.");
    }
    _prepareWasCalled = true;
    int bucketSize = Utils.getInt(topoConf.get(Config.TOPOLOGY_BUILTIN_METRICS_BUCKET_SIZE_SECS));
    final RuntimeMXBean jvmRT = ManagementFactory.getRuntimeMXBean();
    context.registerMetric("uptimeSecs", new IMetric() {

        @Override
        public Object getValueAndReset() {
            return jvmRT.getUptime() / 1000.0;
        }
    }, bucketSize);
    context.registerMetric("startTimeSecs", new IMetric() {

        @Override
        public Object getValueAndReset() {
            return jvmRT.getStartTime() / 1000.0;
        }
    }, bucketSize);
    context.registerMetric("newWorkerEvent", new IMetric() {

        boolean doEvent = true;

        @Override
        public Object getValueAndReset() {
            if (doEvent) {
                doEvent = false;
                return 1;
            } else
                return 0;
        }
    }, bucketSize);
    final MemoryMXBean jvmMemRT = ManagementFactory.getMemoryMXBean();
    context.registerMetric("memory/heap", new MemoryUsageMetric(jvmMemRT::getHeapMemoryUsage), bucketSize);
    context.registerMetric("memory/nonHeap", new MemoryUsageMetric(jvmMemRT::getNonHeapMemoryUsage), bucketSize);
    for (GarbageCollectorMXBean b : ManagementFactory.getGarbageCollectorMXBeans()) {
        context.registerMetric("GC/" + b.getName().replaceAll("\\W", ""), new GarbageCollectorMetric(b), bucketSize);
    }
    registerMetrics(context, (Map<String, String>) topoConf.get(Config.WORKER_METRICS), bucketSize, topoConf);
    registerMetrics(context, (Map<String, String>) topoConf.get(Config.TOPOLOGY_WORKER_METRICS), bucketSize, topoConf);
}