Date: Thu, 23 Dec 2010 19:21:30 +0000 From: Bruce Cran <bruce@cran.org.uk> To: Alexander Best <arundel@freebsd.org> Cc: freebsd-bugs@FreeBSD.org Subject: Re: kern/104624: Sound, mouse and keyboard badly interrupted while I/O (disk, net) Message-ID: <20101223192130.00007b30@unknown> In-Reply-To: <20101223183720.GA84742@freebsd.org> References: <201012121110.oBCBABjm057751@freefall.freebsd.org> <20101212111844.7510053e@core.draftnet> <20101212121923.GA61077@freebsd.org> <20101223103220.0000483f@unknown> <20101223183720.GA84742@freebsd.org>
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On Thu, 23 Dec 2010 18:37:20 +0000 Alexander Best <arundel@freebsd.org> 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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