*/
    protected short getSystemCpuPercent() {
        final long now = getCurrentTimeAsLong();
        if (now - systemCpuCheckTime > systemCpuCheckInterval) {
            synchronized (this) {
                if (now - systemCpuCheckTime > systemCpuCheckInterval) {
                    try {
                        final OsProbe osProbe = OsProbe.getInstance();