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/* measure.h
* Macros to help with performance measurement.
* vi:ts=4 sw=4
*
* (c) Copyright 2012 Hewlett-Packard Development Company, L.P.
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License. You may obtain
* a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing
* permissions and limitations under the License. Algorithms used by
* this code may be covered by patents by HP, Microsoft, or other parties.
*
* MEASURE_LOOP_START("measurement", 2000)
* code to be measured
* MEASURE_LOOP_STOP
* buffer flush and such
* MEASURE_SHOW_RESULTS
*
* Define GOOGLE_PROFILER if you want gperftools included.
*/
#ifndef TEST_MEASURE_H_INCLUDED
#define TEST_MEASURE_H_INCLUDED
#include <freerdp/config.h>
#include <time.h>
#include <winpr/string.h>
#ifndef _WIN32
#include <sys/param.h>
#endif
#include <winpr/crt.h>
#ifdef _WIN32
#define PROFILER_START(_prefix_)
#define PROFILER_STOP
#define MEASURE_LOOP_START(_prefix_, _count_)
#define MEASURE_LOOP_STOP
#define MEASURE_GET_RESULTS(_result_)
#define MEASURE_SHOW_RESULTS(_result_)
#define MEASURE_SHOW_RESULTS_SCALED(_scale_, _label_)
#define MEASURE_TIMED(_label_, _init_iter_, _test_time_, _result_, _call_)
#else
#ifdef GOOGLE_PROFILER
#include <gperftools/profiler.h>
#define PROFILER_START(_prefix_) \
do \
{ \
char _path[PATH_MAX]; \
sprintf_s(_path, sizeof(_path), "./%s.prof", (_prefix_)); \
ProfilerStart(_path); \
} while (0);
#define PROFILER_STOP \
do \
{ \
ProfilerStop(); \
} while (0);
#else
#define PROFILER_START(_prefix_)
#define PROFILER_STOP
#endif // GOOGLE_PROFILER
extern float _delta_time(const struct timespec* t0, const struct timespec* t1);
extern void _floatprint(float t, char* output);
#ifndef CLOCK_MONOTONIC_RAW
#define CLOCK_MONOTONIC_RAW 4
#endif // !CLOCK_MONOTONIC_RAW
#define MEASURE_LOOP_START(_prefix_, _count_) \
{ \
struct timespec _start, _stop; \
char* _prefix; \
int _count = (_count_); \
int _loop; \
float _delta; \
char _str1[32], _str2[32]; \
_prefix = _strdup(_prefix_); \
_str1[0] = '\0'; \
_str2[0] = '\0'; \
clock_gettime(CLOCK_MONOTONIC_RAW, &_start); \
PROFILER_START(_prefix); \
_loop = (_count); \
do \
{
#define MEASURE_LOOP_STOP \
} \
while (--_loop) \
;
#define MEASURE_GET_RESULTS(_result_) \
PROFILER_STOP; \
clock_gettime(CLOCK_MONOTONIC_RAW, &_stop); \
_delta = _delta_time(&_start, &_stop); \
(_result_) = (float)_count / _delta; \
free(_prefix); \
}
#define MEASURE_SHOW_RESULTS(_result_) \
PROFILER_STOP; \
clock_gettime(CLOCK_MONOTONIC_RAW, &_stop); \
_delta = _delta_time(&_start, &_stop); \
(_result_) = (float)_count / _delta; \
_floatprint((float)_count / _delta, _str1); \
printf("%s: %9d iterations in %5.1f seconds = %s/s \n", _prefix, _count, _delta, _str1); \
free(_prefix); \
}
#define MEASURE_SHOW_RESULTS_SCALED(_scale_, _label_) \
PROFILER_STOP; \
clock_gettime(CLOCK_MONOTONIC_RAW, &_stop); \
_delta = _delta_time(&_start, &_stop); \
_floatprint((float)_count / _delta, _str1); \
_floatprint((float)_count / _delta * (_scale_), _str2); \
printf("%s: %9d iterations in %5.1f seconds = %s/s = %s%s \n", _prefix, _count, _delta, _str1, \
_str2, _label_); \
free(_prefix); \
}
#define MEASURE_TIMED(_label_, _init_iter_, _test_time_, _result_, _call_) \
{ \
float _r; \
MEASURE_LOOP_START(_label_, _init_iter_); \
_call_; \
MEASURE_LOOP_STOP; \
MEASURE_GET_RESULTS(_r); \
MEASURE_LOOP_START(_label_, _r* _test_time_); \
_call_; \
MEASURE_LOOP_STOP; \
MEASURE_SHOW_RESULTS(_result_); \
}
#endif
#endif // __MEASURE_H_INCLUDED__
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