mirror of https://github.com/PCSX2/pcsx2.git
328 lines
9.3 KiB
C
328 lines
9.3 KiB
C
/*
|
|
* benchtest1.c
|
|
*
|
|
*
|
|
* --------------------------------------------------------------------------
|
|
*
|
|
* Pthreads-win32 - POSIX Threads Library for Win32
|
|
* Copyright(C) 1998 John E. Bossom
|
|
* Copyright(C) 1999,2005 Pthreads-win32 contributors
|
|
*
|
|
* Contact Email: rpj@callisto.canberra.edu.au
|
|
*
|
|
* The current list of contributors is contained
|
|
* in the file CONTRIBUTORS included with the source
|
|
* code distribution. The list can also be seen at the
|
|
* following World Wide Web location:
|
|
* http://sources.redhat.com/pthreads-win32/contributors.html
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library in the file COPYING.LIB;
|
|
* if not, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*
|
|
* --------------------------------------------------------------------------
|
|
*
|
|
* Measure time taken to complete an elementary operation.
|
|
*
|
|
* - Mutex
|
|
* Two threads iterate over lock/unlock for each mutex type.
|
|
* The two threads are forced into lock-step using two mutexes,
|
|
* forcing the threads to block on each lock operation. The
|
|
* time measured is therefore the worst case senario.
|
|
*/
|
|
|
|
#include "test.h"
|
|
#include <sys/timeb.h>
|
|
|
|
#ifdef __GNUC__
|
|
#include <stdlib.h>
|
|
#endif
|
|
|
|
#include "benchtest.h"
|
|
|
|
#define PTW32_MUTEX_TYPES
|
|
#define ITERATIONS 100000L
|
|
|
|
pthread_mutex_t gate1, gate2;
|
|
old_mutex_t ox1, ox2;
|
|
CRITICAL_SECTION cs1, cs2;
|
|
pthread_mutexattr_t ma;
|
|
long durationMilliSecs;
|
|
long overHeadMilliSecs = 0;
|
|
PTW32_STRUCT_TIMEB currSysTimeStart;
|
|
PTW32_STRUCT_TIMEB currSysTimeStop;
|
|
pthread_t worker;
|
|
int running = 0;
|
|
|
|
#define GetDurationMilliSecs(_TStart, _TStop) ((long)((_TStop.time*1000+_TStop.millitm) \
|
|
- (_TStart.time*1000+_TStart.millitm)))
|
|
|
|
/*
|
|
* Dummy use of j, otherwise the loop may be removed by the optimiser
|
|
* when doing the overhead timing with an empty loop.
|
|
*/
|
|
#define TESTSTART \
|
|
{ int i, j = 0, k = 0; PTW32_FTIME(&currSysTimeStart); for (i = 0; i < ITERATIONS; i++) { j++;
|
|
|
|
#define TESTSTOP \
|
|
}; PTW32_FTIME(&currSysTimeStop); if (j + k == i) j++; }
|
|
|
|
|
|
void *
|
|
overheadThread(void * arg)
|
|
{
|
|
do
|
|
{
|
|
sched_yield();
|
|
}
|
|
while (running);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
void *
|
|
oldThread(void * arg)
|
|
{
|
|
do
|
|
{
|
|
(void) old_mutex_lock(&ox1);
|
|
(void) old_mutex_lock(&ox2);
|
|
(void) old_mutex_unlock(&ox1);
|
|
sched_yield();
|
|
(void) old_mutex_unlock(&ox2);
|
|
}
|
|
while (running);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void *
|
|
workerThread(void * arg)
|
|
{
|
|
do
|
|
{
|
|
(void) pthread_mutex_lock(&gate1);
|
|
(void) pthread_mutex_lock(&gate2);
|
|
(void) pthread_mutex_unlock(&gate1);
|
|
sched_yield();
|
|
(void) pthread_mutex_unlock(&gate2);
|
|
}
|
|
while (running);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void *
|
|
CSThread(void * arg)
|
|
{
|
|
do
|
|
{
|
|
EnterCriticalSection(&cs1);
|
|
EnterCriticalSection(&cs2);
|
|
LeaveCriticalSection(&cs1);
|
|
sched_yield();
|
|
LeaveCriticalSection(&cs2);
|
|
}
|
|
while (running);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
runTest (char * testNameString, int mType)
|
|
{
|
|
#ifdef PTW32_MUTEX_TYPES
|
|
assert(pthread_mutexattr_settype(&ma, mType) == 0);
|
|
#endif
|
|
assert(pthread_mutex_init(&gate1, &ma) == 0);
|
|
assert(pthread_mutex_init(&gate2, &ma) == 0);
|
|
assert(pthread_mutex_lock(&gate1) == 0);
|
|
assert(pthread_mutex_lock(&gate2) == 0);
|
|
running = 1;
|
|
assert(pthread_create(&worker, NULL, workerThread, NULL) == 0);
|
|
TESTSTART
|
|
(void) pthread_mutex_unlock(&gate1);
|
|
sched_yield();
|
|
(void) pthread_mutex_unlock(&gate2);
|
|
(void) pthread_mutex_lock(&gate1);
|
|
(void) pthread_mutex_lock(&gate2);
|
|
TESTSTOP
|
|
running = 0;
|
|
assert(pthread_mutex_unlock(&gate2) == 0);
|
|
assert(pthread_mutex_unlock(&gate1) == 0);
|
|
assert(pthread_join(worker, NULL) == 0);
|
|
assert(pthread_mutex_destroy(&gate2) == 0);
|
|
assert(pthread_mutex_destroy(&gate1) == 0);
|
|
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
|
|
printf( "%-45s %15ld %15.3f\n",
|
|
testNameString,
|
|
durationMilliSecs,
|
|
(float) durationMilliSecs * 1E3 / ITERATIONS / 4 /* Four locks/unlocks per iteration */);
|
|
}
|
|
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
assert(pthread_mutexattr_init(&ma) == 0);
|
|
|
|
printf( "=============================================================================\n");
|
|
printf( "\nLock plus unlock on a locked mutex.\n");
|
|
printf("%ld iterations, four locks/unlocks per iteration.\n\n", ITERATIONS);
|
|
|
|
printf( "%-45s %15s %15s\n",
|
|
"Test",
|
|
"Total(msec)",
|
|
"average(usec)");
|
|
printf( "-----------------------------------------------------------------------------\n");
|
|
|
|
/*
|
|
* Time the loop overhead so we can subtract it from the actual test times.
|
|
*/
|
|
|
|
running = 1;
|
|
assert(pthread_create(&worker, NULL, overheadThread, NULL) == 0);
|
|
TESTSTART
|
|
sched_yield();
|
|
sched_yield();
|
|
TESTSTOP
|
|
running = 0;
|
|
assert(pthread_join(worker, NULL) == 0);
|
|
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
|
|
overHeadMilliSecs = durationMilliSecs;
|
|
|
|
|
|
InitializeCriticalSection(&cs1);
|
|
InitializeCriticalSection(&cs2);
|
|
EnterCriticalSection(&cs1);
|
|
EnterCriticalSection(&cs2);
|
|
running = 1;
|
|
assert(pthread_create(&worker, NULL, CSThread, NULL) == 0);
|
|
TESTSTART
|
|
LeaveCriticalSection(&cs1);
|
|
sched_yield();
|
|
LeaveCriticalSection(&cs2);
|
|
EnterCriticalSection(&cs1);
|
|
EnterCriticalSection(&cs2);
|
|
TESTSTOP
|
|
running = 0;
|
|
LeaveCriticalSection(&cs2);
|
|
LeaveCriticalSection(&cs1);
|
|
assert(pthread_join(worker, NULL) == 0);
|
|
DeleteCriticalSection(&cs2);
|
|
DeleteCriticalSection(&cs1);
|
|
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
|
|
printf( "%-45s %15ld %15.3f\n",
|
|
"Simple Critical Section",
|
|
durationMilliSecs,
|
|
(float) durationMilliSecs * 1E3 / ITERATIONS / 4 );
|
|
|
|
|
|
old_mutex_use = OLD_WIN32CS;
|
|
assert(old_mutex_init(&ox1, NULL) == 0);
|
|
assert(old_mutex_init(&ox2, NULL) == 0);
|
|
assert(old_mutex_lock(&ox1) == 0);
|
|
assert(old_mutex_lock(&ox2) == 0);
|
|
running = 1;
|
|
assert(pthread_create(&worker, NULL, oldThread, NULL) == 0);
|
|
TESTSTART
|
|
(void) old_mutex_unlock(&ox1);
|
|
sched_yield();
|
|
(void) old_mutex_unlock(&ox2);
|
|
(void) old_mutex_lock(&ox1);
|
|
(void) old_mutex_lock(&ox2);
|
|
TESTSTOP
|
|
running = 0;
|
|
assert(old_mutex_unlock(&ox1) == 0);
|
|
assert(old_mutex_unlock(&ox2) == 0);
|
|
assert(pthread_join(worker, NULL) == 0);
|
|
assert(old_mutex_destroy(&ox2) == 0);
|
|
assert(old_mutex_destroy(&ox1) == 0);
|
|
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
|
|
printf( "%-45s %15ld %15.3f\n",
|
|
"Old PT Mutex using a Critical Section (WNT)",
|
|
durationMilliSecs,
|
|
(float) durationMilliSecs * 1E3 / ITERATIONS / 4);
|
|
|
|
|
|
old_mutex_use = OLD_WIN32MUTEX;
|
|
assert(old_mutex_init(&ox1, NULL) == 0);
|
|
assert(old_mutex_init(&ox2, NULL) == 0);
|
|
assert(old_mutex_lock(&ox1) == 0);
|
|
assert(old_mutex_lock(&ox2) == 0);
|
|
running = 1;
|
|
assert(pthread_create(&worker, NULL, oldThread, NULL) == 0);
|
|
TESTSTART
|
|
(void) old_mutex_unlock(&ox1);
|
|
sched_yield();
|
|
(void) old_mutex_unlock(&ox2);
|
|
(void) old_mutex_lock(&ox1);
|
|
(void) old_mutex_lock(&ox2);
|
|
TESTSTOP
|
|
running = 0;
|
|
assert(old_mutex_unlock(&ox1) == 0);
|
|
assert(old_mutex_unlock(&ox2) == 0);
|
|
assert(pthread_join(worker, NULL) == 0);
|
|
assert(old_mutex_destroy(&ox2) == 0);
|
|
assert(old_mutex_destroy(&ox1) == 0);
|
|
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
|
|
printf( "%-45s %15ld %15.3f\n",
|
|
"Old PT Mutex using a Win32 Mutex (W9x)",
|
|
durationMilliSecs,
|
|
(float) durationMilliSecs * 1E3 / ITERATIONS / 4);
|
|
|
|
printf( ".............................................................................\n");
|
|
|
|
/*
|
|
* Now we can start the actual tests
|
|
*/
|
|
#ifdef PTW32_MUTEX_TYPES
|
|
runTest("PTHREAD_MUTEX_DEFAULT", PTHREAD_MUTEX_DEFAULT);
|
|
|
|
runTest("PTHREAD_MUTEX_NORMAL", PTHREAD_MUTEX_NORMAL);
|
|
|
|
runTest("PTHREAD_MUTEX_ERRORCHECK", PTHREAD_MUTEX_ERRORCHECK);
|
|
|
|
runTest("PTHREAD_MUTEX_RECURSIVE", PTHREAD_MUTEX_RECURSIVE);
|
|
#else
|
|
runTest("Non-blocking lock", 0);
|
|
#endif
|
|
|
|
printf( ".............................................................................\n");
|
|
|
|
pthread_mutexattr_setrobust(&ma, PTHREAD_MUTEX_ROBUST);
|
|
|
|
#ifdef PTW32_MUTEX_TYPES
|
|
runTest("PTHREAD_MUTEX_DEFAULT (Robust)", PTHREAD_MUTEX_DEFAULT);
|
|
|
|
runTest("PTHREAD_MUTEX_NORMAL (Robust)", PTHREAD_MUTEX_NORMAL);
|
|
|
|
runTest("PTHREAD_MUTEX_ERRORCHECK (Robust)", PTHREAD_MUTEX_ERRORCHECK);
|
|
|
|
runTest("PTHREAD_MUTEX_RECURSIVE (Robust)", PTHREAD_MUTEX_RECURSIVE);
|
|
#else
|
|
runTest("Non-blocking lock", 0);
|
|
#endif
|
|
|
|
printf( "=============================================================================\n");
|
|
/*
|
|
* End of tests.
|
|
*/
|
|
|
|
pthread_mutexattr_destroy(&ma);
|
|
|
|
return 0;
|
|
}
|