On Thu, 23 Dec 2010 18:37:20 +0000
Alexander Best <[email protected]> wrote:

> is this output right at the beginning normal?
> 
> fio: this platform does not support process shared mutexes, forcing
> use of threads. Use the 'thread' option to get rid of this warning.
> f1: (g=0): rw=write, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 ...
> f1: (g=0): rw=write, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> fio: this platform does not support process shared mutexes, forcing
> use of threads. Use the 'thread' option to get rid of this warning.
> f2: (g=1): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 ...
> f2: (g=1): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> fio: this platform does not support process shared mutexes, forcing
> use of threads. Use the 'thread' option to get rid of this warning.
> f3: (g=2): rw=read, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 ...
> f3: (g=2): rw=read, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> fio: this platform does not support process shared mutexes, forcing
> use of threads. Use the 'thread' option to get rid of this warning.
> f4: (g=3): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 ...
> f4: (g=3): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> Starting 12 threads and 4 processes

Yes - it just means that FreeBSD doesn't support pshared mutexes. You
can add "thread" to the job file to stop the warning.

-- 
Bruce Cran
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