MemUsage.cxx File Reference

#include "WireCellUtil/MemUsage.h"
#include <unistd.h>
#include <sstream>

Go to the source code of this file.

Functions
static double	memusage_linux_resident ()
static double	memusage_linux_shared ()
static double	memusage_linux_size ()

Function Documentation

static double memusage_linux_resident ( )

static

Definition at line 9 of file MemUsage.cxx.

                                        {
    int tSize = 0, resident = 0, share = 0;
    ifstream buffer("/proc/self/statm");
    buffer >> tSize >> resident >> share;
    buffer.close();

    long page_size_kb = sysconf(_SC_PAGE_SIZE) / 1024; // in case x86-64 is configured to use 2MB pages
    double rss = resident * page_size_kb;
    return rss;
}

static double memusage_linux_shared ( )

static

Definition at line 20 of file MemUsage.cxx.

                                      {
    int tSize = 0, resident = 0, share = 0;
    ifstream buffer("/proc/self/statm");
    buffer >> tSize >> resident >> share;
    buffer.close();

    long page_size_kb = sysconf(_SC_PAGE_SIZE) / 1024; // in case x86-64 is configured to use 2MB pages
    double shm = share * page_size_kb;
    return shm;
}

static double memusage_linux_size ( )

static

Definition at line 31 of file MemUsage.cxx.

                                    {
    int tSize = 0, resident = 0, share = 0;
    ifstream buffer("/proc/self/statm");
    buffer >> tSize >> resident >> share;
    buffer.close();

    long page_size_kb = sysconf(_SC_PAGE_SIZE) / 1024; // in case x86-64 is configured to use 2MB pages
    double siz = tSize * page_size_kb;
    return siz;
}