From: Jens Axboe <axboe@kernel.dk>
To: Taisuke Yamada <tai@rakugaki.org>
Cc: fio@vger.kernel.org
Subject: Re: [PATCH 1/2] Added replay_rebase option to run multi-threaded log replay on different disk sectors.
Date: Fri, 09 Sep 2011 10:37:34 +0200 [thread overview]
Message-ID: <4E69D04E.3090705@kernel.dk> (raw)
In-Reply-To: <4E69A048.6050509@rakugaki.org>
On 2011-09-09 07:12, Taisuke Yamada wrote:
> Hi.
>
> I'm now trying to run multi-threaded log replay, and noticed
> all threads are accessing same sector on a disk. Of course,
> this is an expected behavior of "replay".
>
> But since I also wanted to have each thread accessing different
> parts of the disk to increase a load, but still following the
> access pattern of the original, I added "replay_rebase" option to
> shift offset of IO request for each thread.
>
> Althrough there's "1/2" in the subject, this patch is complete
> by itself. Next one (2/2) is related, but handles different issue.
Thanks, I can see this being handy. I can apply this, but I would much
prefer if you resend it with the proper updates to HOWTO and fio.1
adding the new option. Otherwise nobody is going to learn about it.
--
Jens Axboe
next prev parent reply other threads:[~2011-09-09 8:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-09 5:12 [PATCH 1/2] Added replay_rebase option to run multi-threaded log replay on different disk sectors Taisuke Yamada
2011-09-09 8:37 ` Jens Axboe [this message]
2011-09-15 6:23 ` Taisuke Yamada
2011-09-15 11:10 ` Jens Axboe
2011-09-15 11:52 ` Taisuke Yamada
2011-09-15 11:14 ` Jens Axboe
2011-09-15 11:40 ` Taisuke Yamada
2011-09-15 11:42 ` Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2011-09-12 5:30 Taisuke Yamada
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