Sequential workload with fio

Sequential workload with fio

[Andrzej Jakowski]

Question on fio configuration.
I would like to run seq write workload on raw block device.
Fio finishes when it reaches end-of-device. Is there a way to force it
to continue in a circular way till "size" or "runtime" parameter is satisfied?

Thx,
Andrzej

Re: Sequential workload with fio

[Ben England]

there is an option "--time_based" that does this, I think. 

fio --runtime=10 --filesize=25M --filename=/tmp/yyy.fio --bs=4k --name=x --rw=write --time_based

----- Original Message -----
> From: "Andrzej Jakowski" <andrzej.jakowski@gmail.com>
> To: fio@vger.kernel.org
> Sent: Tuesday, October 18, 2016 4:07:18 PM
> Subject: Sequential workload with fio
> 
> Question on fio configuration.
> I would like to run seq write workload on raw block device.
> Fio finishes when it reaches end-of-device. Is there a way to force it
> to continue in a circular way till "size" or "runtime" parameter is
> satisfied?
> 
> Thx,
> Andrzej
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Re: Sequential workload with fio

[Sitsofe Wheeler]

On 18 October 2016 at 21:31, Ben England <bengland@redhat.com> wrote:
> there is an option "--time_based" that does this, I think.
>
> fio --runtime=10 --filesize=25M --filename=/tmp/yyy.fio --bs=4k --name=x --rw=write --time_based

--loops or --io_limit
(https://github.com/axboe/fio/blob/fio-2.14/HOWTO#L498 ) are other
methods method to force wraparound.

-- 
Sitsofe | http://sucs.org/~sits/