From: Jens Axboe <jens.axboe@oracle.com>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: linux kernel mailing list <linux-kernel@vger.kernel.org>,
Divyesh Shah <dpshah@google.com>,
Moyer Jeff Moyer <jmoyer@redhat.com>
Subject: Re: [PATCH] cfq-iosched: no need to keep track of busy_rt_queues
Date: Fri, 10 Jul 2009 10:18:51 +0200 [thread overview]
Message-ID: <20090710081851.GY23611@kernel.dk> (raw)
In-Reply-To: <20090709205108.GG30832@redhat.com>
On Thu, Jul 09 2009, Vivek Goyal wrote:
> Resending as had forgotten to put "[PATCH]" in subject line.
>
> o Get rid of busy_rt_queues infrastructure. Looks like it is redundant.
>
> o Once an RT queue gets request it will preempt any of the BE or IDLE queues
> immediately. Otherwise this queue will be put on service tree and scheduler
> will anyway select this queue before any of the BE or IDLE queue. Hence
> looks like there is no need to keep track of how many busy RT queues are
> currently on service tree.
Looks good, I'll queue this up for 2.6.32.
--
Jens Axboe
next prev parent reply other threads:[~2009-07-10 8:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-09 20:47 cfq-iosched: no need to keep track of busy_rt_queues Vivek Goyal
2009-07-09 20:51 ` [PATCH] " Vivek Goyal
2009-07-10 8:18 ` Jens Axboe [this message]
2009-07-13 21:29 ` Divyesh Shah
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