PerfUtils Class Reference

#include <PerfUtils.h>

Collaboration diagram for PerfUtils:

Static Public Member Functions
static int	getMem ()
static void	getCpu (int &uTime, int &sTime)

Detailed Description

Definition at line 15 of file PerfUtils.h.

Member Function Documentation

getCpu()

void PerfUtils::getCpu ( int &  uTime, int &  sTime  )

static

Definition at line 39 of file PerfUtils.cxx.

                                             {
    // return ms
    pid_t pid = getpid();
    std::ostringstream procstream;
    procstream << "/proc/" << pid << "/stat";
    std::ifstream memfile(procstream.str());
    std::string longString;
    memfile >> longString;
 
    int nblancks = 0;
    uTime = 0;
    sTime = 0;
 
    char line[256];
    while ((memfile >> line)) {
        nblancks++;
        if (nblancks == 13) {
            memfile >> line;
            std::istringstream istream(line);
            istream >> uTime;
            uTime = uTime * 10;
            memfile >> line;
            std::istringstream istream1(line);
            istream1 >> sTime;
            sTime = sTime * 10;
            return;
        }
    }
}

getMem()

int PerfUtils::getMem ( )

static

Definition at line 17 of file PerfUtils.cxx.

                      {
    int memSize = 0;
    pid_t pid = getpid();
    std::ostringstream procstream;
    procstream << "/proc/" << pid << "/status";
    std::ifstream memfile(procstream.str());
    std::string line;
    if (memfile.is_open()) {
        while (std::getline(memfile, line)) {
            std::size_t pos = line.find("VmSize:");
            if (pos != std::string::npos) {
                std::string myStr = line.substr(pos + 7);
                myStr.erase(std::remove(myStr.begin(), myStr.end(), ' '), myStr.end());
                myStr.erase(std::remove(myStr.begin(), myStr.end(), '\t'), myStr.end());
                memSize = std::atoi(myStr.substr(0, myStr.find("kB")).c_str());
            }
        }
        memfile.close();
    }
    return memSize;
}

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The documentation for this class was generated from the following files:

• PerfUtils.h
• PerfUtils.cxx