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/*
* 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
* Single thread iteration over lock/unlock for each mutex type.
*/
#include "test.h"
#include <sys/timeb.h>
#ifdef __GNUC__
#include <stdlib.h>
#endif
#include "benchtest.h"
#define PTW32_MUTEX_TYPES
#define ITERATIONS 10000000L
pthread_mutex_t mx;
pthread_mutexattr_t ma;
struct _timeb currSysTimeStart;
struct _timeb currSysTimeStop;
long durationMilliSecs;
long overHeadMilliSecs = 0;
int two = 2;
int one = 1;
int zero = 0;
int iter;
#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
runTest (char * testNameString, int mType)
{
#ifdef PTW32_MUTEX_TYPES
assert(pthread_mutexattr_settype(&ma, mType) == 0);
#endif
assert(pthread_mutex_init(&mx, &ma) == 0);
TESTSTART
assert((pthread_mutex_lock(&mx),1) == one);
assert((pthread_mutex_unlock(&mx),2) == two);
TESTSTOP
assert(pthread_mutex_destroy(&mx) == 0);
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
printf( "%-45s %15ld %15.3f\n",
testNameString,
durationMilliSecs,
(float) durationMilliSecs * 1E3 / ITERATIONS);
}
int
main (int argc, char *argv[])
{
int i = 0;
CRITICAL_SECTION cs;
old_mutex_t ox;
pthread_mutexattr_init(&ma);
printf( "=============================================================================\n");
printf( "\nLock plus unlock on an unlocked mutex.\n%ld iterations\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.
*/
TESTSTART
assert(1 == one);
assert(2 == two);
TESTSTOP
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
overHeadMilliSecs = durationMilliSecs;
TESTSTART
assert((dummy_call(&i), 1) == one);
assert((dummy_call(&i), 2) == two);
TESTSTOP
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
printf( "%-45s %15ld %15.3f\n",
"Dummy call x 2",
durationMilliSecs,
(float) (durationMilliSecs * 1E3 / ITERATIONS));
TESTSTART
assert((interlocked_inc_with_conditionals(&i), 1) == one);
assert((interlocked_dec_with_conditionals(&i), 2) == two);
TESTSTOP
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
printf( "%-45s %15ld %15.3f\n",
"Dummy call -> Interlocked with cond x 2",
durationMilliSecs,
(float) durationMilliSecs * 1E3 / ITERATIONS);
TESTSTART
assert((InterlockedIncrement((LPLONG)&i), 1) == (LONG)one);
assert((InterlockedDecrement((LPLONG)&i), 2) == (LONG)two);
TESTSTOP
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
printf( "%-45s %15ld %15.3f\n",
"InterlockedOp x 2",
durationMilliSecs,
(float) durationMilliSecs * 1E3 / ITERATIONS);
InitializeCriticalSection(&cs);
TESTSTART
assert((EnterCriticalSection(&cs), 1) == one);
assert((LeaveCriticalSection(&cs), 2) == two);
TESTSTOP
DeleteCriticalSection(&cs);
durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
printf( "%-45s %15ld %15.3f\n",
"Simple Critical Section",
durationMilliSecs,
(float) durationMilliSecs * 1E3 / ITERATIONS);
old_mutex_use = OLD_WIN32CS;
assert(old_mutex_init(&ox, NULL) == 0);
TESTSTART
assert(old_mutex_lock(&ox) == zero);
assert(old_mutex_unlock(&ox) == zero);
TESTSTOP
assert(old_mutex_destroy(&ox) == 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);
old_mutex_use = OLD_WIN32MUTEX;
assert(old_mutex_init(&ox, NULL) == 0);
TESTSTART
assert(old_mutex_lock(&ox) == zero);
assert(old_mutex_unlock(&ox) == zero);
TESTSTOP
assert(old_mutex_destroy(&ox) == 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);
printf( ".............................................................................\n");
/*
* Now we can start the actual tests
*/
#ifdef PTW32_MUTEX_TYPES
runTest("PTHREAD_MUTEX_DEFAULT (W9x,WNT)", PTHREAD_MUTEX_DEFAULT);
runTest("PTHREAD_MUTEX_NORMAL (W9x,WNT)", PTHREAD_MUTEX_NORMAL);
runTest("PTHREAD_MUTEX_ERRORCHECK (W9x,WNT)", PTHREAD_MUTEX_ERRORCHECK);
runTest("PTHREAD_MUTEX_RECURSIVE (W9x,WNT)", PTHREAD_MUTEX_RECURSIVE);
#else
runTest("Non-blocking lock", 0);
#endif
printf( "=============================================================================\n");
/*
* End of tests.
*/
pthread_mutexattr_destroy(&ma);
one = i; /* Dummy assignment to avoid 'variable unused' warning */
return 0;
}