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osd_work.c: limit WORK_QUEUE_FLAG_HIGH_FREQ to 3 threads since we don't scale well above / logging (nw)

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tested with n64dd on Windows with Intel Sandy Bridge i7-2600k with GCC
and Visual Studio 2013 compiles with and without optimization
This commit is contained in:
Oliver Stöneberg 2015-01-06 12:00:32 +01:00
parent c41db9fdd1
commit 0290d016d3
1 changed files with 4 additions and 5 deletions
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9
src/osd/modules/sync/work_osd.c
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@ -249,13 +249,12 @@ osd_work_queue *osd_work_queue_alloc(int flags)
if (osdworkqueuemaxthreads != NULL && sscanf(osdworkqueuemaxthreads, "%d", &osdthreadnum) == 1 && threadnum > osdthreadnum)
threadnum = osdthreadnum;
// TODO: do we still have the scaling problems?
// TODO: also enable this for non-Windows platforms?
#if defined(OSD_WINDOWS)
// multi-queues with high frequency items should top out at 4 for now
// multi-queues with high frequency items should top out at 3 for now
// since we have scaling problems above that
if ((flags & WORK_QUEUE_FLAG_HIGH_FREQ) && threadnum > 1)
threadnum = MIN(threadnum - 1, 4);
threadnum = MIN(threadnum - 1, 3);
#endif
// clamp to the maximum
@ -267,7 +266,7 @@ osd_work_queue *osd_work_queue_alloc(int flags)
else
allocthreadnum = queue->threads;
osd_printf_verbose("procs: %d threads: %d allocthreads: %d osdthreads: %d maxthreads: %d queuethreads: %d\n", osd_num_processors, threadnum, allocthreadnum, osdthreadnum, WORK_MAX_THREADS, queue->threads);
osd_printf_verbose("osdprocs: %d effecprocs: %d threads: %d allocthreads: %d osdthreads: %d maxthreads: %d queuethreads: %d\n", osd_num_processors, numprocs, threadnum, allocthreadnum, osdthreadnum, WORK_MAX_THREADS, queue->threads);
queue->thread = (work_thread_info *)osd_malloc_array(allocthreadnum * sizeof(queue->thread[0]));
if (queue->thread == NULL)