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osd_work: use n threads when n CPUs are detected since modern CPUs have at least two cores per CPU (nw)

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also makes -np use the actual number supplied across all platforms
This commit is contained in:
Oliver Stöneberg 2015-01-07 16:47:09 +01:00
parent 7dd9bd50d8
commit 3bffa5e3cf
1 changed files with 0 additions and 7 deletions
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7
src/osd/modules/sync/work_osd.c
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@ -208,16 +208,9 @@ osd_work_queue *osd_work_queue_alloc(int flags)
// on a single-CPU system, create 1 thread for I/O queues, and 0 threads for everything else
if (numprocs == 1)
threadnum = (flags & WORK_QUEUE_FLAG_IO) ? 1 : 0;
// TODO: chose either
#if defined(OSD_WINDOWS)
// on an n-CPU system, create n threads for multi queues, and 1 thread for everything else
else
threadnum = (flags & WORK_QUEUE_FLAG_MULTI) ? numprocs : 1;
#else
// on an n-CPU system, create (n-1) threads for multi queues, and 1 thread for everything else
else
threadnum = (flags & WORK_QUEUE_FLAG_MULTI) ? (numprocs - 1) : 1;
#endif
if (osdworkqueuemaxthreads != NULL && sscanf(osdworkqueuemaxthreads, "%d", &osdthreadnum) == 1 && threadnum > osdthreadnum)
threadnum = osdthreadnum;