From: Fam Zheng <zhengfeiran@bytedance.com>
To: linux-kernel@vger.kernel.org
Cc: axboe@kernel.dk, fam@euphon.net, paolo.valente@linaro.org,
duanxiongchun@bytedance.com, linux-block@vger.kernel.org,
tj@kernel.org, cgroups@vger.kernel.org,
zhangjiachen.jc@bytedance.com
Subject: [PATCH v2 0/3] Implement BFQ per-device weight interface
Date: Mon, 5 Aug 2019 14:38:04 +0800 [thread overview]
Message-ID: <20190805063807.9494-1-zhengfeiran@bytedance.com> (raw)
(Revision starting from v2 since v1 was used off-list)
Hi Paolo and others,
This adds to BFQ the missing per-device weight interfaces:
blkio.bfq.weight_device on legacy and io.bfq.weight on unified. The
implementation pretty closely resembles what we had in CFQ and the parsing code
is basically reused.
Tests
=====
Using two cgroups and three block devices, having weights setup as:
Cgroup test1 test2
============================================
default 100 500
sda 500 100
sdb default default
sdc 200 200
cgroup v1 runs
--------------
sda.test1.out: READ: bw=913MiB/s
sda.test2.out: READ: bw=183MiB/s
sdb.test1.out: READ: bw=213MiB/s
sdb.test2.out: READ: bw=1054MiB/s
sdc.test1.out: READ: bw=650MiB/s
sdc.test2.out: READ: bw=650MiB/s
cgroup v2 runs
--------------
sda.test1.out: READ: bw=915MiB/s
sda.test2.out: READ: bw=184MiB/s
sdb.test1.out: READ: bw=216MiB/s
sdb.test2.out: READ: bw=1069MiB/s
sdc.test1.out: READ: bw=621MiB/s
sdc.test2.out: READ: bw=622MiB/s
Fam Zheng (3):
bfq: Fix the missing barrier in __bfq_entity_update_weight_prio
bfq: Extract bfq_group_set_weight from bfq_io_set_weight_legacy
bfq: Add per-device weight
block/bfq-cgroup.c | 151 +++++++++++++++++++++++++++++++++++++++-------------
block/bfq-iosched.h | 3 ++
block/bfq-wf2q.c | 2 +
3 files changed, 119 insertions(+), 37 deletions(-)
--
2.11.0
next reply other threads:[~2019-08-05 6:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-05 6:38 Fam Zheng [this message]
2019-08-05 6:38 ` [PATCH v2 1/3] bfq: Fix the missing barrier in __bfq_entity_update_weight_prio Fam Zheng
2019-08-05 6:38 ` [PATCH v2 2/3] bfq: Extract bfq_group_set_weight from bfq_io_set_weight_legacy Fam Zheng
2019-08-05 6:38 ` [PATCH v2 3/3] bfq: Add per-device weight Fam Zheng
2019-08-21 15:44 ` Tejun Heo
2019-08-26 6:36 ` Paolo Valente
2019-08-26 13:59 ` Jens Axboe
2019-08-28 3:50 ` Fam Zheng
2019-08-05 15:08 ` [PATCH v2 0/3] Implement BFQ per-device weight interface Paolo Valente
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=20190805063807.9494-1-zhengfeiran@bytedance.com \
--to=zhengfeiran@bytedance.com \
--cc=axboe@kernel.dk \
--cc=cgroups@vger.kernel.org \
--cc=duanxiongchun@bytedance.com \
--cc=fam@euphon.net \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=paolo.valente@linaro.org \
--cc=tj@kernel.org \
--cc=zhangjiachen.jc@bytedance.com \
/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).