From: Tejun Heo <tj@kernel.org>
To: xuejiufei <xuejiufei@gmail.com>
Cc: Jens Axboe <axboe@fb.com>, Shaohua Li <shli@kernel.org>,
linux-block@vger.kernel.org, cgroups@vger.kernel.org,
jinli.zjl@alibaba-inc.com, qijiang.qj@alibaba-inc.com
Subject: Re: [RFC PATCH] blk-throttle: dispatch more sync writes in block throttle layer
Date: Tue, 9 Jan 2018 06:56:59 -0800 [thread overview]
Message-ID: <20180109145659.GG3668920@devbig577.frc2.facebook.com> (raw)
In-Reply-To: <5ff01c31-5277-909f-4c35-9b9be513d8e1@gmail.com>
Hello,
On Tue, Jan 09, 2018 at 12:45:13PM +0800, xuejiufei wrote:
> 1. A bio is charged according to the direction, if we put the reads
> and sync writes together, we need to search the queue to pick a
> certain number of read and write IOs when the limit is not reached.
Ah, you're right.
> 2. I found that the multi-queue scheduler kyber also has three queues:
> one for read, one for sync write and one for others. This patch
> introduces another queue for async writes and others just like kyber.
Yeah, it'd make sense to make that a separate queue then.
Thanks.
--
tejun
next prev parent reply other threads:[~2018-01-09 14:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-05 5:16 [RFC PATCH] blk-throttle: dispatch more sync writes in block throttle layer xuejiufei
2018-01-05 5:16 ` xuejiufei
2018-01-08 12:07 ` Tejun Heo
2018-01-09 4:45 ` xuejiufei
2018-01-09 4:45 ` xuejiufei
2018-01-09 14:56 ` Tejun Heo [this message]
2018-01-10 1:44 ` xuejiufei
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