Total Virtual Memory: #include "sys/types.h" In the end I got all values via a combination of reading the pseudo-filesystem /proc and kernel calls.
When I finally checked the kernel sources themselves, I found out that apparently these APIs are not yet completely implemented as of Linux kernel 2.6!? I spent some time trying to get this to work, but never got meaningful values. On Linux the choice that seemed obvious at first was to use the POSIX APIs like getrusage() etc. Percent /= (now.QuadPart - lastCPU.QuadPart) Percent = (sys.QuadPart - lastSysCPU.QuadPart) + Memcpy(&lastUserCPU, &fuser, sizeof(FILETIME)) Memcpy(&lastSysCPU, &fsys, sizeof(FILETIME)) GetProcessTimes(self, &ftime, &ftime, &fsys, &fuser) Memcpy(&lastCPU, &ftime, sizeof(FILETIME)) NumProcessors = sysInfo.dwNumberOfProcessors Static ULARGE_INTEGER lastCPU, lastSysCPU, lastUserCPU PdhGetFormattedCounterValue(cpuTotal, PDH_FMT_DOUBLE, NULL, &counterVal) ĬPU currently used by current process: #include "windows.h" PdhAddEnglishCounter(cpuQuery, L"\\Processor(_Total)\\% Processor Time", NULL, &cpuTotal)
You can also use L"\\Processor(*)\\% Processor Time" and get individual CPU values with PdhGetFormattedCounterArray() Same code as in "Virtual Memory currently used by current process" and then SIZE_T physMemUsedByMe = pmc.WorkingSetSize Physical Memory currently used by current process: Same code as in "Total Virtual Memory" and then DWORDLONG physMemUsed = memInfo.ullTotalPhys - memInfo.ullAvailPhys Same code as in "Total Virtual Memory" and then DWORDLONG totalPhysMem = memInfo.ullTotalPhys SIZE_T virtualMemUsedByMe = pmc.PrivateUsage GetProcessMemoryInfo(GetCurrentProcess(), (PROCESS_MEMORY_COUNTERS*)&pmc, sizeof(pmc)) Virtual Memory currently used by current process: #include "windows.h" Same code as in "Total Virtual Memory" and then DWORDLONG virtualMemUsed = memInfo.ullTotalPageFile - memInfo.ullAvailPageFile In reality this parameter gives the "Virtual Memory Size", which is size of swap file plus installed RAM. Note: The name "TotalPageFile" is a bit misleading here. MemInfo.dwLength = sizeof(MEMORYSTATUSEX) ĭWORDLONG totalVirtualMem = memInfo.ullTotalPageFile Total Virtual Memory: #include "windows.h" Note: for clarity all error checking has been omitted from the following code. (At least it took me quite a while, perhaps I've been only a bit stupid.) Others, however, need to be obtained from the Performance Data Helper library (PDH), which is a bit "unintuitive" and takes a lot of painful trial and error to get to work. Some of the above values are easily available from the appropriate Win32 API, I just list them here for completeness.
0 kommentar(er)
