* Anyone doing async I/O on FreeBSD?
@ 2012-10-24 21:45 Tom Blamer
2012-10-25 8:20 ` Jens Axboe
0 siblings, 1 reply; 5+ messages in thread
From: Tom Blamer @ 2012-10-24 21:45 UTC (permalink / raw)
To: fio
On a clean install of 9.0-RELEASE, fio-2.0.10 built from source, any
job with posixaio fails with a "Function not implemented" error (see
below).
It looks like the ports collection contains some kind of emulation
tool for libaio (linux-libaio), should I be looking into that?
bsdserv1# cat doit.job
[doit]
thread
ioengine=posixaio
iodepth=2
size=16M
nrfiles=1
rw=rw
rwmixread=90
bsdserv1# fio doit.job
doit: (g=0): rw=rw, bs=4K-4K/4K-4K/4K-4K, ioengine=posixaio, iodepth=2
fio-2.0.10
Starting 1 thread
fio: pid=100082, err=78/file:engines/posixaio.c:198, func=xfer,
error=Function not implemented
doit: (groupid=0, jobs=1): err=78 (file:engines/posixaio.c:198,
func=xfer, error=Function not implemented): pid=100082: Wed Oct 24
16:27:05 2012
cpu : usr=0.00%, sys=0.00%, ctx=0, majf=0, minf=5
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=50.0%, 4=50.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=1/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
bsdserv1#
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: Anyone doing async I/O on FreeBSD?
2012-10-24 21:45 Anyone doing async I/O on FreeBSD? Tom Blamer
@ 2012-10-25 8:20 ` Jens Axboe
2012-10-25 10:58 ` Bruce Cran
0 siblings, 1 reply; 5+ messages in thread
From: Jens Axboe @ 2012-10-25 8:20 UTC (permalink / raw)
To: Tom Blamer; +Cc: fio
On 2012-10-24 23:45, Tom Blamer wrote:
> On a clean install of 9.0-RELEASE, fio-2.0.10 built from source, any
> job with posixaio fails with a "Function not implemented" error (see
> below).
>
> It looks like the ports collection contains some kind of emulation
> tool for libaio (linux-libaio), should I be looking into that?
>
> bsdserv1# cat doit.job
> [doit]
> thread
> ioengine=posixaio
> iodepth=2
> size=16M
> nrfiles=1
> rw=rw
> rwmixread=90
>
> bsdserv1# fio doit.job
> doit: (g=0): rw=rw, bs=4K-4K/4K-4K/4K-4K, ioengine=posixaio, iodepth=2
> fio-2.0.10
> Starting 1 thread
> fio: pid=100082, err=78/file:engines/posixaio.c:198, func=xfer,
> error=Function not implemented
That's aio_read or aio_write returning -1/ENOSYS, which means that it's
not implemented. From a quick google, on FreeBSD, it seems you need to
have a kernel compiled with VFS_AIO enabled. Not sure why that isn't the
default...
--
Jens Axboe
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Anyone doing async I/O on FreeBSD?
2012-10-25 8:20 ` Jens Axboe
@ 2012-10-25 10:58 ` Bruce Cran
2012-10-25 12:30 ` Jens Axboe
0 siblings, 1 reply; 5+ messages in thread
From: Bruce Cran @ 2012-10-25 10:58 UTC (permalink / raw)
To: Jens Axboe; +Cc: Tom Blamer, fio
On 25 Oct 2012, at 09:20, Jens Axboe <axboe@kernel.dk> wrote:
> That's aio_read or aio_write returning -1/ENOSYS, which means that it's
> not implemented. From a quick google, on FreeBSD, it seems you need to
> have a kernel compiled with VFS_AIO enabled. Not sure why that isn't the
> default…
There was a discussion about it a few months ago - http://freebsd.1045724.n5.nabble.com/aio-in-GENERIC-td5727900.html .
For now you need to 'kldload aio'.
--
Bruce Cran
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Anyone doing async I/O on FreeBSD?
2012-10-25 10:58 ` Bruce Cran
@ 2012-10-25 12:30 ` Jens Axboe
2012-10-25 21:43 ` Tom Blamer
0 siblings, 1 reply; 5+ messages in thread
From: Jens Axboe @ 2012-10-25 12:30 UTC (permalink / raw)
To: Bruce Cran; +Cc: Tom Blamer, fio
On 2012-10-25 12:58, Bruce Cran wrote:
>
> On 25 Oct 2012, at 09:20, Jens Axboe <axboe@kernel.dk> wrote:
>
>> That's aio_read or aio_write returning -1/ENOSYS, which means that it's
>> not implemented. From a quick google, on FreeBSD, it seems you need to
>> have a kernel compiled with VFS_AIO enabled. Not sure why that isn't the
>> default�
>
>
> There was a discussion about it a few months ago - http://freebsd.1045724.n5.nabble.com/aio-in-GENERIC-td5727900.html .
> For now you need to 'kldload aio'.
Thanks Bruce, helps with somebody from the camp :-)
"Someone" should collect all these questions and turn them into an
FAQ...
--
Jens Axboe
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Anyone doing async I/O on FreeBSD?
2012-10-25 12:30 ` Jens Axboe
@ 2012-10-25 21:43 ` Tom Blamer
0 siblings, 0 replies; 5+ messages in thread
From: Tom Blamer @ 2012-10-25 21:43 UTC (permalink / raw)
To: Jens Axboe; +Cc: Bruce Cran, fio
On Thu, Oct 25, 2012 at 7:30 AM, Jens Axboe <axboe@kernel.dk> wrote:
> On 2012-10-25 12:58, Bruce Cran wrote:
>>
>> On 25 Oct 2012, at 09:20, Jens Axboe <axboe@kernel.dk> wrote:
>>
>>> That's aio_read or aio_write returning -1/ENOSYS, which means that it's
>>> not implemented. From a quick google, on FreeBSD, it seems you need to
>>> have a kernel compiled with VFS_AIO enabled. Not sure why that isn't the
>>> default…
>>
>>
>> There was a discussion about it a few months ago - http://freebsd.1045724.n5.nabble.com/aio-in-GENERIC-td5727900.html .
>> For now you need to 'kldload aio'.
>
> Thanks Bruce, helps with somebody from the camp :-)
>
> "Someone" should collect all these questions and turn them into an
> FAQ...
>
> --
> Jens Axboe
>
Thanks for the quick responses. I tried 'kldload aio' and that worked
for me. Shows how much I know...
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2012-10-25 21:43 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2012-10-24 21:45 Anyone doing async I/O on FreeBSD? Tom Blamer
2012-10-25 8:20 ` Jens Axboe
2012-10-25 10:58 ` Bruce Cran
2012-10-25 12:30 ` Jens Axboe
2012-10-25 21:43 ` Tom Blamer
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