Evgeny
63 líneas
1.3 KiB
C++
63 líneas
1.3 KiB
C++
#ifndef _PERF_TIMER_H_
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#define _PERF_TIMER_H_
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// Will use AMD timer and general Linux timer based on users' need --> compilation flag
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// need to consider platform is Windows or Linux
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <iostream>
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#include <vector>
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#include <string>
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#if defined(_MSC_VER)
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#include <time.h>
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#include <windows.h>
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#include <intrin.h>
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#else
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#if defined(__GNUC__)
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#include <sys/time.h>
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#include <x86intrin.h>
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#endif // __GNUC__
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#endif //_MSC_VER
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using namespace std;
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class PerfTimer {
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public:
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enum { SUCCESS = 0, FAILURE = 1 };
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PerfTimer();
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~PerfTimer();
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// General Linux timing method
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int CreateTimer();
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int StartTimer(int index);
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int StopTimer(int index);
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// retrieve time
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double ReadTimer(int index);
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// write into a file
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double WriteTimer(int index);
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private:
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struct Timer {
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string name; /* < name name of time object*/
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long long _freq; /* < _freq frequency*/
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double _clocks; /* < _clocks number of ticks at end*/
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double _start; /* < _start start point ticks*/
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};
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std::vector<Timer*> _timers; /*< _timers vector to Timer objects */
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double freq_in_100mhz;
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// AMD timing method
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uint64_t CoarseTimestampUs();
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uint64_t MeasureTSCFreqHz();
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void Error(string str);
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};
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#endif // _PERF_TIMER_H_
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