public static PerfomanceInfoData GetPerformanceInfo()
{
PerfomanceInfoData data = new PerfomanceInfoData();
PsApiPerformanceInformation perfInfo = new PsApiPerformanceInformation();
if (GetPerformanceInfo(out perfInfo, Marshal.SizeOf(perfInfo)))
{
/// data in pages
data.CommitTotalPages = perfInfo.CommitTotal.ToInt64();
data.CommitLimitPages = perfInfo.CommitLimit.ToInt64();
data.CommitPeakPages = perfInfo.CommitPeak.ToInt64();
/// data in bytes
Int64 pageSize = perfInfo.PageSize.ToInt64();
data.PhysicalTotalBytes = perfInfo.PhysicalTotal.ToInt64() * pageSize;
data.PhysicalAvailableBytes = perfInfo.PhysicalAvailable.ToInt64() * pageSize;
data.SystemCacheBytes = perfInfo.SystemCache.ToInt64() * pageSize;
data.KernelTotalBytes = perfInfo.KernelTotal.ToInt64() * pageSize;
data.KernelPagedBytes = perfInfo.KernelPaged.ToInt64() * pageSize;
data.KernelNonPagedBytes = perfInfo.KernelNonPaged.ToInt64() * pageSize;
data.PageSizeBytes = pageSize;
/// counters
data.HandlesCount = perfInfo.HandlesCount;
data.ProcessCount = perfInfo.ProcessCount;
data.ThreadCount = perfInfo.ThreadCount;
}
return(data);
}
private float GetMemoryUsage()
{
PerfomanceInfoData perfData = PsApiWrapper.GetPerformanceInfo();
float free = perfData.PhysicalAvailableBytes;
float total = perfData.PhysicalTotalBytes;
float usage = (total - free) / total;
return(usage * 100);
}
