java.lang.management.CompilationMXBean#getTotalCompilationTime ( )源码实例Demo

@Override
public void sense(final MetricContext metricContext)
{
    CompilationMXBean mxBean = ManagementFactory.getCompilationMXBean();

    // Compilation time may not be supported on some platforms, skip if so.
    if (!mxBean.isCompilationTimeMonitoringSupported()) {
        return;
    }

    long total = mxBean.getTotalCompilationTime();
    metricContext.record(TOTAL_COMPILATION_TIME, total, Unit.MILLISECOND);
    metricContext.record(COMPILATION_TIME, total - prevTotal, Unit.MILLISECOND);

    this.prevTotal = total;
}
 

/**
 * Returns the total time of asynchronous JIT compilation in milliseconds.
 * 
 * @return JIT compile time
 */
public static long getJITCompileTime(){
	long ret = -1; //unsupported
	CompilationMXBean cmx = ManagementFactory.getCompilationMXBean();
	if( cmx.isCompilationTimeMonitoringSupported() )
	{
		ret = cmx.getTotalCompilationTime();
		ret += jitCompileTime; //add from remote processes
	}
	return ret;
}
 

@Override
protected IMonitoringRecord[] createNewMonitoringRecords(final long timestamp, final String hostname, final String vmName,
		final IMonitoringController monitoringCtr) {
	if (!monitoringCtr.isProbeActivated(SignatureFactory.createJVMCompilationSignature())) {
		return new IMonitoringRecord[] {};
	}

	final CompilationMXBean compilationBean = ManagementFactory.getCompilationMXBean();

	return new IMonitoringRecord[] { new CompilationRecord(timestamp, hostname, vmName, compilationBean.getName(), compilationBean.getTotalCompilationTime()), };
}
 

/**
 * Returns the total time of asynchronous JIT compilation in milliseconds.
 * 
 * @return JIT compile time
 */
public static long getJITCompileTime(){
	long ret = -1; //unsupported
	CompilationMXBean cmx = ManagementFactory.getCompilationMXBean();
	if( cmx.isCompilationTimeMonitoringSupported() )
	{
		ret = cmx.getTotalCompilationTime();
		ret += jitCompileTime; //add from remote processes
	}
	return ret;
}
 

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));

    }