How to use

JvmMemoryMetrics

in

cn.myperf4j.base.metric

  private String createLineProtocol(JvmMemoryMetrics metrics, long startNanos, StringBuilder sb) {
    sb.append("jvm_memory_metrics")
        .append(",AppName=").append(ProfilingConfig.getInstance().getAppName())
        .append(" NonHeapInit=").append(metrics.getNonHeapInit())
        .append(",NonHeapUsed=").append(metrics.getNonHeapUsed())
        .append(",NonHeapCommitted=").append(metrics.getNonHeapCommitted())
        .append(",NonHeapMax=").append(metrics.getNonHeapMax())
        .append(",HeapInit=").append(metrics.getHeapInit())
        .append(",HeapUsed=").append(metrics.getHeapUsed())
        .append(",HeapCommitted=").append(metrics.getHeapCommitted())
        .append(",HeapMax=").append(metrics.getHeapMax())
        .append(" ").append(startNanos);
    return sb.toString();
  }
}

private void processJVMMemoryMetrics(long processId, long startMillis, long stopMillis) {
  MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
  MemoryUsage nonHeapMem = memoryMXBean.getNonHeapMemoryUsage();
  MemoryUsage heapMem = memoryMXBean.getHeapMemoryUsage();
  memoryMetricsProcessor.beforeProcess(processId, startMillis, stopMillis);
  try {
    memoryMetricsProcessor.process(new JvmMemoryMetrics(nonHeapMem, heapMem), processId, startMillis, stopMillis);
  } finally {
    memoryMetricsProcessor.afterProcess(processId, startMillis, stopMillis);
  }
}

@Override
public String format(List<JvmMemoryMetrics> metricsList, long startMillis, long stopMillis) {
  String dataTitleFormat = "%-19s%19s%19s%19s%19s%19s%19s%19s%n";
  StringBuilder sb = new StringBuilder((metricsList.size() + 2) * (9 * 19 + 64));
  sb.append("MyPerf4J JVM Memory Metrics [").append(DateFormatUtils.format(startMillis)).append(", ").append(DateFormatUtils.format(stopMillis)).append("]").append(String.format("%n"));
  sb.append(String.format(dataTitleFormat, "NonHeapInit", "NonHeapUsed", "NonHeapCommitted", "NonHeapMax", "HeapInit", "HeapUsed", "HeapCommitted", "HeapMax"));
  if (metricsList.isEmpty()) {
    return sb.toString();
  }
  String dataFormat = "%-19d%19d%19d%19d%19d%19d%19d%19d%n";
  for (int i = 0; i < metricsList.size(); ++i) {
    JvmMemoryMetrics metrics = metricsList.get(i);
    sb.append(String.format(dataFormat,
        metrics.getNonHeapInit(),
        metrics.getNonHeapUsed(),
        metrics.getNonHeapCommitted(),
        metrics.getNonHeapMax(),
        metrics.getHeapInit(),
        metrics.getHeapUsed(),
        metrics.getHeapCommitted(),
        metrics.getHeapMax()));
  }
  return sb.toString();
}