Java Code Examples for java.lang.management.ClassLoadingMXBean#getTotalLoadedClassCount()
The following examples show how to use
java.lang.management.ClassLoadingMXBean#getTotalLoadedClassCount() .
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Example 1
Source File: ClassLoadingSampler.java From kieker with Apache License 2.0 | 5 votes |
@Override protected IMonitoringRecord[] createNewMonitoringRecords(final long timestamp, final String hostname, final String vmName, final IMonitoringController monitoringCtr) { if (!monitoringCtr.isProbeActivated(SignatureFactory.createJVMClassLoadSignature())) { return new IMonitoringRecord[] {}; } final ClassLoadingMXBean classLoadingBean = ManagementFactory.getClassLoadingMXBean(); return new IMonitoringRecord[] { new ClassLoadingRecord(timestamp, hostname, vmName, classLoadingBean.getTotalLoadedClassCount(), classLoadingBean.getLoadedClassCount(), classLoadingBean.getUnloadedClassCount()), }; }
Example 2
Source File: DiagnosticTask.java From netbeans with Apache License 2.0 | 4 votes |
private String logParams() { StringBuilder sb = new StringBuilder(500); sb.append("Diagnostic information\n"); try { RuntimeMXBean rmBean = ManagementFactory.getRuntimeMXBean(); CompilationMXBean cmpMBean = ManagementFactory.getCompilationMXBean(); // ThreadMXBean tmBean = ManagementFactory.getThreadMXBean(); MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean(); ClassLoadingMXBean clMBean = ManagementFactory.getClassLoadingMXBean(); // MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); // ObjectName hsDiag = new ObjectName("com.sun.management:name=HotSpotDiagnostic"); // com.sun.management.OperatingSystemMXBean sunOSMBean = // ManagementFactory.getSunOperatingSystemMXBean(); // Map<String, String> props = new TreeMap<String, String>(rmBean.getSystemProperties()); // System.out.println("System properties"); // for (Map.Entry<String, String> entry: props.entrySet()) { // System.out.println("Property: "+entry.getKey()+" Value: "+entry.getValue()); // } sb.append("Input arguments:"); for (String s: rmBean.getInputArguments()) { sb.append("\n\t").append(s); } if (cmpMBean != null) { sb.append("\nCompiler: "+cmpMBean.getName()).append('\n'); } // Memory MemoryUsage usage = memoryBean.getHeapMemoryUsage(); logMemoryUsage(sb, usage, "Heap memory"); usage = memoryBean.getNonHeapMemoryUsage(); logMemoryUsage(sb, usage, "Non heap memory"); for (GarbageCollectorMXBean gcMBean: ManagementFactory.getGarbageCollectorMXBeans()) { sb.append("Garbage collector: ").append(gcMBean.getName()) .append(" (Collections=").append(gcMBean.getCollectionCount()) .append(" Total time spent=").append(formatTime(gcMBean.getCollectionTime())) .append(")\n"); } // classes int clsLoaded; long clsTotal, clsUnloaded; clsLoaded = clMBean.getLoadedClassCount(); clsTotal = clMBean.getTotalLoadedClassCount(); clsUnloaded = clMBean.getUnloadedClassCount(); sb.append("Classes: loaded=").append(clsLoaded) .append(" total loaded=").append(clsTotal) .append(" unloaded ").append(clsUnloaded).append('\n'); // } catch (MalformedObjectNameException ex) { // Logger.getLogger("global").log(Level.WARNING, null, ex); } catch (NullPointerException ex) { LOG.log(Level.WARNING, null, ex); } return sb.toString(); }
Example 3
Source File: ClassData.java From openjdk-systemtest with Apache License 2.0 | 4 votes |
/** * This method writes the data retrieved from the ClassLoading and * Compilation MXBeans to the ClassData's log using the MXBeans directly or * through a proxy. * * @param clb * The ClassLoading MXBean used to retrieve information about * loaded classes. * @param cb * The Compilation MXBean used to retrieve compilation * information. * @param rb * The Runtime MXBean used to retrieve general information about * the runtime used. * @param append * If the append value is true the data is appended to the log, * otherwise the log is overwritten. */ public void writeData(ClassLoadingMXBean clb, CompilationMXBean cb, RuntimeMXBean rb, boolean append) throws UndeclaredThrowableException { if ((clb == null)) { Assert.fail("ClassLoadingMXBean is null"); } openLogFile(append); DecimalFormat df = new DecimalFormat("#0.00"); // Print out all times to 2 d.p. try { // Record the time and whether the verbose output is enabled out.println("Class Loading and Compilation Information Retrieved at " + DateFormat.getDateTimeInstance().format(new Date())); out.println(""); // Get stats for the class loader, check the values and write them to a file int load_cls_cnt = clb.getLoadedClassCount(); long unload_cls_cnt = clb.getUnloadedClassCount(); long total_cls_cnt = clb.getTotalLoadedClassCount(); // Check the class counts are valid checkClassCounts("proxy", load_cls_cnt, unload_cls_cnt, total_cls_cnt); // Print the results to the log out.println("CLASS LOADING STATS"); out.println(" Current Loaded Class Count: " + load_cls_cnt); out.println(" Total Unloaded Class Count: " + unload_cls_cnt); out.println(" Total Loaded Class Count: " + total_cls_cnt); out.print(" Verbose output enabled: "); if (clb.isVerbose()) { out.println("Yes"); } else { out.println("No"); } out.println(""); out.println(""); // If there is a compiler get the info Map<String, String> props = rb.getSystemProperties(); String sys_comp = props.get("java.compiler"); if ((sys_comp != null) && (!(sys_comp.equals("")))) { // Get the info for the compiler and write to file out.println("COMPILER INFORMATION"); String mxbean_comp = cb.getName(); // Check if the compiler matches the compiler specified in the system properties checkCompiler("proxy", sys_comp, mxbean_comp); out.println(" Just-in-time (JIT) compiler: " + mxbean_comp); if (cb.isCompilationTimeMonitoringSupported()) { out.println(" Total Compilation Time: " + df.format(cb.getTotalCompilationTime() * 1e-3) + " seconds"); // Convert milliseconds to seconds } out.println(""); out.println(""); } closeLogFile(); } catch (UnsupportedOperationException uoe) { Message.logOut("One of the operations you tried is not supported"); uoe.printStackTrace(); Assert.fail("One of the operations you tried is not supported"); } }
Example 4
Source File: TelemetryDataProvider.java From jsonde with BSD 3-Clause "New" or "Revised" License | 4 votes |
public void run() { TelemetryDataDto telemetryDataDto = new TelemetryDataDto(); telemetryDataDto.time = System.currentTimeMillis(); Runtime runtime = Runtime.getRuntime(); telemetryDataDto.freeMemory = runtime.freeMemory(); telemetryDataDto.maxMemory = runtime.maxMemory(); telemetryDataDto.totalMemory = runtime.totalMemory(); ClassLoadingMXBean classLoadingMXBean = ManagementFactory.getClassLoadingMXBean(); telemetryDataDto.loadedClassCount = classLoadingMXBean.getLoadedClassCount(); telemetryDataDto.classCount = classLoadingMXBean.getTotalLoadedClassCount(); telemetryDataDto.unloadedClassCount = classLoadingMXBean.getUnloadedClassCount(); CompilationMXBean compilationMXBean = ManagementFactory.getCompilationMXBean(); telemetryDataDto.totalCompilationTime = compilationMXBean.getTotalCompilationTime(); if (null != profiler) profiler.sendMessage(new TelemetryDataMessage(telemetryDataDto)); }