Read_Memory_File.C

Go to the documentation of this file.

/********************************************************************************
 *    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
 *                                                                              *
 *              This software is distributed under the terms of the             *
 *              GNU Lesser General Public Licence (LGPL) version 3,             *
 *                  copied verbatim in the file "LICENSE"                       *
 ********************************************************************************/
#include "Riostream.h"
void Read_Memory_File(TString inputFile, Int_t Interval)
{
    //  Read data from the memeory_consumption_<pid>.txt file
    // and create a root file with an ntuple.
    // Author: Florian Uhlig

    // This file has one colum with the time and 10 colums with the data
    // The time is the real time which has to be converted into the time
    // difference between the actual and the first measurement.
    // To make things simple for the begining the time interval is given
    // as parameter and all new measurements have time=#measurement*Interval

    ifstream in;
    in.open(inputFile.Data());

    Int_t vmPeak, vmSize, vmLck, vmHWM, vmRSS, vmData, vmStk, vmExe, vmLib, vmPTE;
    Int_t time, timeZero, filesize;
    Float_t cpu;
    TString dummy[14];
    Int_t nlines = 0;
    Bool_t firstTime = kTRUE;

    TString outputFile(inputFile);
    outputFile.ReplaceAll(".txt", ".root");
    TFile *f = TFile::Open(outputFile, "RECREATE");
    TNtuple *ntuple = new TNtuple("ntuple",
                                  "data from ascii file",
                                  "time:vmPeak:vmSize:vmLck:vmHWM:vmRSS:vmData:vmStk:vmExe:vmLib:vmPTE:filesize:cpu");

    // Read and skip the first colum which contains only the header
    in >> dummy[0] >> dummy[1] >> dummy[2] >> dummy[3] >> dummy[4] >> dummy[5] >> dummy[6] >> dummy[7] >> dummy[8]
        >> dummy[9] >> dummy[10] >> dummy[11] >> dummy[12] >> dummy[13];

    while (1) {
        in >> dummy[0] >> time >> vmPeak >> dummy[1] >> vmSize >> dummy[2] >> vmLck >> dummy[3] >> vmHWM >> dummy[4]
            >> vmRSS >> dummy[5] >> vmData >> dummy[6] >> vmStk >> dummy[7] >> vmExe >> dummy[8] >> vmLib >> dummy[9]
            >> vmPTE >> dummy[10] >> filesize >> cpu;

        if (firstTime) {
            timeZero = time;
            firstTime = kFALSE;
        }
        time -= timeZero;
        // filesize in MB
        filesize /= 1024;
        //      time=nlines*Interval;
        if (!in.good())
            break;
        ntuple->Fill(time, vmPeak, vmSize, vmLck, vmHWM, vmRSS, vmData, vmStk, vmExe, vmLib, vmPTE, filesize, cpu);
        nlines++;
    }
    printf(" found %d measurements\n", nlines);

    in.close();

    f->Write();
}