From: Randy Dunlap <rdunlap@infradead.org>
To: Josef Bacik <josef@toxicpanda.com>,
axboe@kernel.dk, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, hannes@cmpxchg.org, tj@kernel.org,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
kernel-team@fb.com
Cc: Josef Bacik <jbacik@fb.com>
Subject: Re: [PATCH 12/14] block: introduce blk-iolatency io controller
Date: Tue, 3 Jul 2018 12:32:12 -0700 [thread overview]
Message-ID: <e1f98f78-bf01-272f-3121-02612d01d57e@infradead.org> (raw)
In-Reply-To: <20180703151503.2549-13-josef@toxicpanda.com>
On 07/03/2018 08:15 AM, Josef Bacik wrote:
> diff --git a/block/Kconfig b/block/Kconfig
> index 28ec55752b68..074c6099c31f 100644
> --- a/block/Kconfig
> +++ b/block/Kconfig
> @@ -149,6 +149,18 @@ config BLK_WBT
> dynamically on an algorithm loosely based on CoDel, factoring in
> the realtime performance of the disk.
>
> +config BLK_CGROUP_IOLATENCY
> + bool "Enable support for latency based cgroup IO protection"
> + depends on BLK_CGROUP=y
> + default n
> + ---help---
> + Enabling this option enables the .latency interface for IO throttling.
> + The IO controller will attempt to maintain average IO latencies below
> + the configured latency target, throttling anybody with a higher latency
Could that be: any process {or any task}
I don't want to see it throttling any bodies.
> + target than the victimized group.
> +
> + Note, this is an experimental interface and could be changed someday.
> +
> config BLK_WBT_SQ
> bool "Single queue writeback throttling"
> default n
--
~Randy
next prev parent reply other threads:[~2018-07-03 19:32 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-03 15:14 [PATCH 0/14][V6] Introduce io.latency io controller for cgroups Josef Bacik
2018-07-03 15:14 ` [PATCH 01/14] block: add bi_blkg to the bio " Josef Bacik
2018-07-03 15:14 ` [PATCH 02/14] block: introduce bio_issue_as_root_blkg Josef Bacik
2018-07-03 15:14 ` [PATCH 03/14] blk-cgroup: allow controllers to output their own stats Josef Bacik
2018-07-03 15:14 ` [PATCH 04/14] blk: introduce REQ_SWAP Josef Bacik
2018-07-03 15:14 ` [PATCH 05/14] swap,blkcg: issue swap io with the appropriate context Josef Bacik
2018-07-03 19:27 ` Randy Dunlap
2018-07-03 19:32 ` Jens Axboe
2018-07-03 15:14 ` [PATCH 06/14] blkcg: add generic throttling mechanism Josef Bacik
2018-08-05 12:41 ` Konstantin Khlebnikov
2018-07-03 15:14 ` [PATCH 07/14] memcontrol: schedule throttling if we are congested Josef Bacik
2018-07-03 15:14 ` [PATCH 08/14] blk-stat: export helpers for modifying blk_rq_stat Josef Bacik
2018-07-03 15:14 ` [PATCH 09/14] blk-rq-qos: refactor out common elements of blk-wbt Josef Bacik
2018-07-03 15:14 ` [PATCH 10/14] block: remove external dependency on wbt_flags Josef Bacik
2018-07-03 15:15 ` [PATCH 11/14] rq-qos: introduce dio_bio callback Josef Bacik
2018-07-03 19:29 ` Randy Dunlap
2018-07-03 19:33 ` Jens Axboe
2018-07-03 15:15 ` [PATCH 12/14] block: introduce blk-iolatency io controller Josef Bacik
2018-07-03 19:32 ` Randy Dunlap [this message]
2018-07-03 15:15 ` [PATCH 13/14] Documentation: add a doc for blk-iolatency Josef Bacik
2018-07-03 22:28 ` Randy Dunlap
2018-08-05 12:40 ` Konstantin Khlebnikov
2018-07-03 15:15 ` [PATCH 14/14] skip readahead if the cgroup is congested Josef Bacik
2018-07-03 15:37 ` [PATCH 0/14][V6] Introduce io.latency io controller for cgroups Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2018-06-29 19:25 [PATCH 00/14][V5] " Josef Bacik
2018-06-29 19:25 ` [PATCH 12/14] block: introduce blk-iolatency io controller Josef Bacik
2018-07-02 21:47 ` Tejun Heo
2018-06-27 19:09 [PATCH 00/14][V4] Introduce io.latency io controller for cgroups Josef Bacik
2018-06-27 19:09 ` [PATCH 12/14] block: introduce blk-iolatency io controller Josef Bacik
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=e1f98f78-bf01-272f-3121-02612d01d57e@infradead.org \
--to=rdunlap@infradead.org \
--cc=akpm@linux-foundation.org \
--cc=axboe@kernel.dk \
--cc=hannes@cmpxchg.org \
--cc=jbacik@fb.com \
--cc=josef@toxicpanda.com \
--cc=kernel-team@fb.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=tj@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).