Flexible I/O Tester development
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From: Jens Axboe <axboe@kernel.dk>
To: Erwan Velu <erwan@enovance.com>
Cc: "fio@vger.kernel.org" <fio@vger.kernel.org>
Subject: Re: How to loop a timebased job
Date: Wed, 04 Sep 2013 11:52:49 -0600	[thread overview]
Message-ID: <52277371.5070004@kernel.dk> (raw)
In-Reply-To: <52273BF5.90109@enovance.com>

On 09/04/2013 07:56 AM, Erwan Velu wrote:
> On 04/09/2013 00:37, Jens Axboe wrote:
>> It should work, if it doesn't, I agree it's a bug. It's not certain
>> than anyone has considered this specific use case before. Feel free to
>> fix! Or I can take a look at it tomorrow. 
> I think I found the issue but my main question is about priority.
> 
> If both time & loops are set, what shall be considered as the key
> element to stop the benchmark.
> 
> Today, time have the priority over loops as keep_running() returns if
> time_based while time is handled in do_io().
> 
> If I do remove this test in keep_running, the first of the two getting
> the limit will stop the job.
> On one hand, we have timebased option to insure time over end of device.
> Shall we put a loopbased on the other hand ?

Good point, yes, that is a problem. Adding a loopbased option would seem
to be the best way to solve the dependency issue.

-- 
Jens Axboe


  reply	other threads:[~2013-09-04 17:52 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-03 19:34 How to loop a timebased job Erwan Velu
2013-09-03 22:37 ` Jens Axboe
2013-09-04 13:56   ` Erwan Velu
2013-09-04 17:52     ` Jens Axboe [this message]
2013-09-04 20:02       ` Erwan Velu
2013-09-04 20:11         ` Jens Axboe

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