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Diffstat (limited to 'liblo/pthreads.2/tests/benchtest1.c')
| -rw-r--r-- | liblo/pthreads.2/tests/benchtest1.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/liblo/pthreads.2/tests/benchtest1.c b/liblo/pthreads.2/tests/benchtest1.c new file mode 100644 index 0000000..da0380e --- /dev/null +++ b/liblo/pthreads.2/tests/benchtest1.c @@ -0,0 +1,249 @@ +/*
+ * 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 one = 1;
+int zero = 0;
+
+#define GetDurationMilliSecs(_TStart, _TStop) ((_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; _ftime(&currSysTimeStart); for (i = 0; i < ITERATIONS; i++) { j++;
+
+#define TESTSTOP \
+ }; _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) == zero);
+ assert(pthread_mutex_unlock(&mx) == zero);
+ 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(1 == one);
+ TESTSTOP
+
+ durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
+ overHeadMilliSecs = durationMilliSecs;
+
+
+ TESTSTART
+ assert((dummy_call(&i), 1) == one);
+ assert((dummy_call(&i), 1) == one);
+ 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), 1) == one);
+ 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), 1) == (LONG)one);
+ 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), 1) == one);
+ 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;
+}
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