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FTK changes. Added unit test to compare native vs mutex-based atomic ops.

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git-svn-id: https://svn.code.sf.net/p/flaim/code/trunk@783 0109f412-320b-0410-ab79-c3e0c5ffbbe6
This commit is contained in:
ahodgkinson
2006-08-22 18:23:16 +00:00
parent be4b7f2224
commit 5240cb997b
1 changed files with 42 additions and 0 deletions
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42
ftk/util/ftktest.cpp
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@@ -4451,12 +4451,49 @@ Desc:
RCODE ftkTestAtomics( void)
{
RCODE rc = NE_FLM_OK;
F_MUTEX hMutex = F_MUTEX_NULL;
IF_Thread * pThreadList[ F_ATOM_TEST_THREADS];
FLMUINT uiStartTime;
FLMUINT uiSlowTime = 0;
FLMUINT uiFastTime = 0;
FLMUINT uiLoop;
FLMATOMIC uiTmp;
gv_refCount = 0;
f_memset( pThreadList, 0, sizeof( IF_Thread *) * F_ATOM_TEST_THREADS);
if( RC_BAD( rc = f_mutexCreate( &hMutex)))
{
goto Exit;
}
f_printf( "Running native atomic inc vs. mutex atomic inc ... ");
uiStartTime = FLM_GET_TIMER();
uiTmp = 0;
for( uiLoop = 0; uiLoop < 1000000; uiLoop++)
{
f_mutexLock( hMutex);
uiTmp++;
f_mutexUnlock( hMutex);
}
uiSlowTime = FLM_ELAPSED_TIME( FLM_GET_TIMER(), uiStartTime);
uiStartTime = FLM_GET_TIMER();
uiTmp = 0;
for( uiLoop = 0; uiLoop < 1000000; uiLoop++)
{
f_atomicInc( &uiTmp);
}
uiFastTime = FLM_ELAPSED_TIME( FLM_GET_TIMER(), uiStartTime);
f_printf( " Slow time = %u ms, Fast time = %u ms.\n",
(unsigned)FLM_TIMER_UNITS_TO_MILLI( uiSlowTime),
(unsigned)FLM_TIMER_UNITS_TO_MILLI( uiFastTime));
f_printf( "Creating atomic increment threads: ");
for( uiLoop = 0; uiLoop < F_ATOM_TEST_THREADS; uiLoop++)
@@ -4568,6 +4605,11 @@ Exit:
f_threadDestroy( &pThreadList[ uiLoop]);
}
}
if( hMutex != F_MUTEX_NULL)
{
f_mutexDestroy( &hMutex);
}
return( rc);
}