private static bool GetTimes(out long[] idle, out long[] total)
{
SystemProcessorPerformanceInformation[] informations = new SystemProcessorPerformanceInformation[64];
int size = Marshal.SizeOf(typeof(SystemProcessorPerformanceInformation));
idle = null;
total = null;
IntPtr returnLength;
if (NativeMethods.NtQuerySystemInformation(SystemInformationClass.SystemProcessorPerformanceInformation,
informations, informations.Length * size, out returnLength) != 0)
{
return(false);
}
idle = new long[(int)returnLength / size];
total = new long[(int)returnLength / size];
for (int i = 0; i < idle.Length; i++)
{
idle[i] = informations[i].IdleTime;
total[i] = informations[i].KernelTime + informations[i].UserTime;
}
return(true);
}
private static bool GetTimes(out long[] idle, out long[] total) {
SystemProcessorPerformanceInformation[] informations = new
SystemProcessorPerformanceInformation[64];
int size = Marshal.SizeOf(typeof(SystemProcessorPerformanceInformation));
idle = null;
total = null;
IntPtr returnLength;
if (NativeMethods.NtQuerySystemInformation(
SystemInformationClass.SystemProcessorPerformanceInformation,
informations, informations.Length * size, out returnLength) != 0)
return false;
idle = new long[(int)returnLength / size];
total = new long[(int)returnLength / size];
for (int i = 0; i < idle.Length; i++) {
idle[i] = informations[i].IdleTime;
total[i] = informations[i].KernelTime + informations[i].UserTime;
}
return true;
}
private static long[] GetIdleTimes()
{
SystemProcessorPerformanceInformation[] informations = new
SystemProcessorPerformanceInformation[64];
int size = Marshal.SizeOf(typeof(SystemProcessorPerformanceInformation));
IntPtr returnLength;
if (NativeMethods.NtQuerySystemInformation(
SystemInformationClass.SystemProcessorPerformanceInformation,
informations, informations.Length * size, out returnLength) != 0)
{
return(null);
}
long[] result = new long[(int)returnLength / size];
for (int i = 0; i < result.Length; i++)
{
result[i] = informations[i].IdleTime;
}
return(result);
}
private long[] GetIdleTimes()
{
long[] result = new long[coreCount * logicalProcessorsPerCore];
SystemProcessorPerformanceInformation[] informations = new
SystemProcessorPerformanceInformation[result.Length];
IntPtr returnLength;
NtQuerySystemInformation(
SystemInformationClass.SystemProcessorPerformanceInformation,
informations, informations.Length *
Marshal.SizeOf(typeof(SystemProcessorPerformanceInformation)),
out returnLength);
for (int i = 0; i < result.Length; i++)
{
result[i] = informations[i].IdleTime;
}
return(result);
}