protected override CPUUsage NextValue()
{
Int64 idleTime;
Int64 kernelTime;
Int64 userTime;
NtKernel.SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION sysProcessorPerfInfo = NtKernel.QuerySystemProcessorPerformanceInfomation(1)[0];
idleTime = sysProcessorPerfInfo.IdleTime;
kernelTime = sysProcessorPerfInfo.KernelTime - idleTime;
userTime = sysProcessorPerfInfo.UserTime;
Int64 idleTimeDiff = idleTime - idleTimePrev;
Int64 userTimeDiff = userTime - userTimePrev;
Int64 kernelTimeDiff = kernelTime - kernelTimePrev;
Int64 totalTimeDiff = idleTimeDiff + userTimeDiff + kernelTimeDiff;
idleTimePrev = idleTime;
kernelTimePrev = kernelTime;
userTimePrev = userTime;
return(new CPUUsage(
(Int32)(((Double)userTimeDiff / totalTimeDiff) * 100),
(Int32)(((Double)kernelTimeDiff / totalTimeDiff) * 100),
(Int32)(((Double)idleTimeDiff / totalTimeDiff) * 100)
));
}
public NtKernel.SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION[] ProcessorPerformances()
{
return(NtKernel.QuerySystemProcessorPerformanceInfomation(processorCount));
}