From: Tejun Heo <tj@kernel.org>
To: Robin Dong <robin.k.dong@gmail.com>
Cc: linux-kernel@vger.kernel.org, Robin Dong <sanbai@taobao.com>,
Vivek Goyal <vgoyal@redhat.com>, Jens Axboe <axboe@kernel.dk>,
Tao Ma <boyu.mt@taobao.com>
Subject: Re: [PATCH 2/2 v5] block/throttle: Add IO submitted information in blkio.throttle
Date: Fri, 2 Nov 2012 16:07:57 -0700 [thread overview]
Message-ID: <20121102230757.GF27843@mtj.dyndns.org> (raw)
In-Reply-To: <1351848697-26087-2-git-send-email-robin.k.dong@gmail.com>
On Fri, Nov 02, 2012 at 05:31:37PM +0800, Robin Dong wrote:
> From: Robin Dong <sanbai@taobao.com>
>
> Currently, if the IO is throttled by io-throttle, the system admin has no idea
> of the situation and can't report it to the real application user about that
> he/she has to do something.
>
> So this patch adds a new interface named blkio.throttle.io_submitted which
> exposes the number of bios that have been sent into blk-throttle therefore the
> user could calculate the difference from throttle.io_serviced to see how many
> IOs are currently throttled.
>
> Cc: Tejun Heo <tj@kernel.org>
> Cc: Vivek Goyal <vgoyal@redhat.com>
> Cc: Jens Axboe <axboe@kernel.dk>
> Signed-off-by: Tao Ma <boyu.mt@taobao.com>
> Signed-off-by: Robin Dong <sanbai@taobao.com>
Acked-by: Tejun Heo <tj@kernel.org>
Thanks.
--
tejun
next prev parent reply other threads:[~2012-11-02 23:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-02 9:31 [PATCH 1/2 v5] block/throttle: remove redundant type transition Robin Dong
2012-11-02 9:31 ` [PATCH 2/2 v5] block/throttle: Add IO submitted information in blkio.throttle Robin Dong
2012-11-02 20:08 ` Vivek Goyal
2012-11-02 23:07 ` Tejun Heo [this message]
2012-11-02 20:22 ` [PATCH 1/2 v5] block/throttle: remove redundant type transition Vivek Goyal
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