How to get physical memory and cpu used by particular process in windows?

Question

Hi this is my code that prints the physical memory used by some process displayed in bytes , when i am converting bytes into kb by google converter. The value shown in task manager for memory usage is less than output given by my code. Also i want to know the Cpu used by the same process ? I found this question on Stack overflow,CPU USAGE that provides guidance in knowing cpu usage,but i want to know CPU usage for some Particular process id ,instead of current process as mentioned in my code, Can i achieve the same with the code provided.

Any guidance would be appreciated.

int main( void )
{
    HANDLE hProcess;
    PROCESS_MEMORY_COUNTERS pmc;
    DWORD processID = 4696;


    // Print information about the memory usage of the process.

    hProcess = OpenProcess(  PROCESS_QUERY_INFORMATION |
                                    PROCESS_VM_READ,
                                    FALSE, processID );
    if (NULL == hProcess)
        return 1;

    if ( GetProcessMemoryInfo( hProcess, &pmc, sizeof(pmc)) )
    {

        printf( "\tWorkingSetSize: %u\n", pmc.WorkingSetSize );
    }

    CloseHandle( hProcess );
    return 0;
}

score 1 · Accepted Answer · answered May 26 '14 at 15:59

CPU

From the answer linked, you want to use your 'hProcess' handle instead of the 'self' handle from the sample.

Turn this:

self = GetCurrentProcess();
GetProcessTimes(self, &ftime, &ftime, &fsys, &fuser);
...

Into this:

GetProcessTimes(hProcess, &ftime, &ftime, &fsys, &fuser);
...

Memory

The Working Set is comprised of Private (heap, stack, etc) + Shared (typically dll/exe code pages). What specific column in Task Manager (and what OS) are you referencing?

I am referring to Memory(Private Working set) and CPU columns of task manager. — user3410246, May 27 '14 at 04:29

How to get physical memory and cpu used by particular process in windows?

1 Answers1