linux-kernel - Re: [PATCH 6/6] cfq-iosched: Print sync-noidle information in blktrace messages

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Message-ID: <20121206192135.GE3676@htj.dyndns.org>
Date:	Thu, 6 Dec 2012 11:21:35 -0800
From:	Tejun Heo <tj@...nel.org>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	linux-kernel@...r.kernel.org, axboe@...nel.dk, jmoyer@...hat.com
Subject: Re: [PATCH 6/6] cfq-iosched: Print sync-noidle information in
 blktrace messages

On Wed, Oct 03, 2012 at 04:57:01PM -0400, Vivek Goyal wrote:
> Currently we attach a character "S" or "A" to the cfqq<pid>, to represent
> whether queues is sync or async. Add one more character "N" to represent
> whether it is sync-noidle queue or sync queue. So now three different
> type of queues will look as follows.
> 
> cfq1234S   --> sync queus
> cfq1234SN  --> sync noidle queue
> cfq1234A   --> Async queue
> 
> Previously S/A classification was being printed only if group scheduling
> was enabled. This patch also makes sure that this classification is
> displayed even if group idling is disabled.
> 
> Signed-off-by: Vivek Goyal <vgoyal@...hat.com>
> Acked-by: Jeff Moyer <jmoyer@...hat.com>

Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun
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