percentCPUUsage
number - Percentage of CPU used since the last call to getCPUUsage. First call returns 0.cumulativeCPUUsage
number (optional) - Total seconds of CPU time used since process startup.idleWakeupsPerSecond
number - The number of average idle CPU wakeups per second since the last call to getCPUUsage. First call returns 0. Will always return 0 on Windows.