append(buf, "percent", () -> osProbe.getSystemCpuPercent());
        final OsStats osStats = osProbe.osStats();
        buf.append("},");
        append(buf, "load_averages", () -> osStats.getCpu().getLoadAverage());
        buf.append("},");
    }

    private void appendFesenStats(final StringBuilder buf) {
        String stats = null;
        try {

    // GET /api/admin/stats
    @Execute
    public JsonResponse<ApiResult> index() {
        final HashMap<String, Object> stats = new HashMap<>();
        stats.put("jvm", getJvmObj());
        stats.put("os", getOsObj());
        stats.put("process", getProcessObj());
        stats.put("engine", getEngineObj());
        stats.put("fs", getFsObj());

	stats.GCSys = memstats.gcMiscSys.load() + gcWorkBufInUse + gcProgPtrScalarBitsInUse
	stats.OtherSys = memstats.other_sys.load()
	stats.NextGC = heapGoal
	stats.LastGC = memstats.last_gc_unix
	stats.PauseTotalNs = memstats.pause_total_ns
	stats.PauseNs = memstats.pause_ns
	stats.PauseEnd = memstats.pause_end
	stats.NumGC = memstats.numgc
	stats.NumForcedGC = memstats.numforcedgc

		return 0
	}

	stats.RLock()
	defer stats.RUnlock()

	val, ok := stats.apiStats[api]
	if ok {
		return val
	}

	return 0
}

// Load returns the recorded stats.
func (stats *HTTPAPIStats) Load(toLower bool) map[string]int {
	if stats == nil {
		return map[string]int{}
	}

	stats.RLock()
	defer stats.RUnlock()

	if len(r.mostRecentStats.Stats) == 0 {
		r.mostRecentStats = BucketStatsMap{Stats: make(map[string]BucketStats, 1), Timestamp: UTCNow()}
	}
	if len(bs.ReplicationStats.Stats) > 0 {
		r.mostRecentStats.Stats[bucket] = bs
	}
	r.mostRecentStats.Timestamp = UTCNow()
	r.mostRecentStatsMu.Unlock()
	return bs
}

// get the most current of in-memory replication stats  and data usage info from crawler.

   * versions.
   */
  public static Stats fromByteArray(byte[] byteArray) {
    checkNotNull(byteArray);
    checkArgument(
        byteArray.length == BYTES,
        "Expected Stats.BYTES = %s remaining , got %s",
        BYTES,
        byteArray.length);
    return readFrom(ByteBuffer.wrap(byteArray).order(ByteOrder.LITTLE_ENDIAN));
  }

  /**

	}
	if stats.Memory != nil {
		result.Memory.Time = metav1.NewTime(time.Unix(0, stats.Memory.Timestamp))
		if stats.Memory.WorkingSetBytes != nil {
			result.Memory.WorkingSetBytes = &stats.Memory.WorkingSetBytes.Value
		}
		if stats.Memory.AvailableBytes != nil {
			result.Memory.AvailableBytes = &stats.Memory.AvailableBytes.Value
		}
		if stats.Memory.PageFaults != nil {

		Name:              vol0,
		FsStats:           expectedFSStats(),
		VolumeHealthStats: expectedVolumeHealthStats(),
	})
	// Verify 'vol1' has a PVC reference
	assert.Contains(t, append(vs.EphemeralVolumes, vs.PersistentVolumes...), kubestats.VolumeStats{
		Name: vol1,
		PVCRef: &kubestats.PVCReference{
			Name:      pvcClaimName0,
			Namespace: namespace0,
		},
		FsStats:           expectedFSStats(),

func (m *MetricValues) setDriveIOStatMetrics(ioStats driveIOStatMetrics, labels []string) {
	m.Set(driveReadsPerSec, ioStats.readsPerSec, labels...)
	m.Set(driveReadsKBPerSec, ioStats.readsKBPerSec, labels...)
	if ioStats.readsPerSec > 0 {
		m.Set(driveReadsAwait, ioStats.readsAwait, labels...)
	}

	m.Set(driveWritesPerSec, ioStats.writesPerSec, labels...)
	m.Set(driveWritesKBPerSec, ioStats.writesKBPerSec, labels...)

	// refer https://www.kernel.org/doc/Documentation/block/stat.txt
	iostats = IOStats{
		ReadIOs:      stats[0],
		ReadMerges:   stats[1],
		ReadSectors:  stats[2],
		ReadTicks:    stats[3],
		WriteIOs:     stats[4],
		WriteMerges:  stats[5],
		WriteSectors: stats[6],
		WriteTicks:   stats[7],
		CurrentIOs:   stats[8],
		TotalTicks:   stats[9],
		ReqTicks:     stats[10],
	}
	// as per the doc, only 11 fields are guaranteed