short maxCpu = 0;
            for (final NodeStats nodeStats : response.getNodes()) {
                final OsStats os = nodeStats.getOs();
                if (os != null && os.getCpu() != null) {
                    final short percent = os.getCpu().getPercent();
                    if (percent > maxCpu) {
                        maxCpu = percent;
                    }
                }
            }

        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 {

        final OsCpuObj osCpuObj = new OsCpuObj();
        osObj.cpu = osCpuObj;
        osCpuObj.percent = osProbe.getSystemCpuPercent();
        final OsStats osStats = osProbe.osStats();
        osObj.loadAverages = osStats.getCpu().getLoadAverage();
        return osObj;
    }

    private EngineObj getEngineObj() {
        final EngineObj engineObj = new EngineObj();
        try {