public SystemMemoryInfo()
{
var pi = new PERFORMANCE_INFORMATION();
if (NativeMethods.GetPerformanceInfo(out pi, Marshal.SizeOf(pi)))
{
var pageSize = (long)pi.PageSize;
var f = new Func <UIntPtr, long>(p => (long)p * pageSize);
CommitTotalPages = f(pi.CommitTotal);
CommitLimitPages = f(pi.CommitLimit);
CommitPeakPages = f(pi.CommitPeak);
PhysicalTotalBytes = f(pi.PhysicalTotal);
PhysicalAvailableBytes = f(pi.PhysicalAvailable);
PhysicalUsedBytes = PhysicalTotalBytes - PhysicalAvailableBytes;
SystemCacheBytes = f(pi.SystemCache);
KernelTotalBytes = f(pi.KernelTotal);
KernelPagedBytes = f(pi.KernelPaged);
KernelNonPagedBytes = f(pi.KernelNonpaged);
PageSizeBytes = pageSize;
MemoryUsage = Math.Round(((double)PhysicalUsedBytes / PhysicalTotalBytes) * 100);
HandlesCount = (int)pi.HandleCount;
ProcessCount = (int)pi.ProcessCount;
ThreadCount = (int)pi.ThreadCount;
}
}
public static extern bool GetPerformanceInfo([Out] out PERFORMANCE_INFORMATION pPerformanceInformation, [In] int cb);
