00001 #ifdef __linux__
00002
00003 #include "Utilities/Timing/interface/PentiumTimer.h"
00004 #include <iostream>
00005 #include <fstream>
00006 #include <string>
00007 #include <algorithm>
00008 #include <iterator>
00009
00010
00011 PentiumTime::OneTick::~OneTick(){}
00012
00013 PentiumTime::OneTick::OneTick() {
00014
00015 std::string input;
00016 {
00017 std::ifstream cpuinfo("/proc/cpuinfo");
00018 cpuinfo.unsetf( std::ios::skipws );
00019 std::istream_iterator<char> sbegin(cpuinfo),send;
00020 copy(sbegin,send,inserter(input,input.end()));
00021 cpuinfo.close();
00022 }
00023 size_t i = input.find("cpu MHz");
00024 if (i==std::string::npos) {
00025 std::cout << "/proc/cpuinfo does not contain cpu speed..." << std::endl;
00026 one = 1.;
00027 return;
00028 }
00029 i = input.find(":",i);
00030 one = 1.e-6/atof(input.substr(i+1,input.find("/n",i)-i).c_str());
00031 }
00032 #endif
1.5.4