From: Tejun Heo <tj@kernel.org>
To: Chengming Zhou <zhouchengming@bytedance.com>
Cc: hannes@cmpxchg.org, corbet@lwn.net, surenb@google.com,
mingo@redhat.com, peterz@infradead.org,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, cgroups@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
songmuchun@bytedance.com
Subject: Re: [PATCH v2 09/10] sched/psi: per-cgroup PSI stats disable/re-enable interface
Date: Tue, 9 Aug 2022 07:48:25 -1000 [thread overview]
Message-ID: <YvKd6dezPM6UxfD/@slm.duckdns.org> (raw)
In-Reply-To: <20220808110341.15799-10-zhouchengming@bytedance.com>
Hello,
On Mon, Aug 08, 2022 at 07:03:40PM +0800, Chengming Zhou wrote:
> So this patch introduce a per-cgroup PSI stats disable/re-enable
> interface "cgroup.psi", which is a read-write single value file that
> allowed values are "0" and "1", the defaults is "1" so per-cgroup
> PSI stats is enabled by default.
Given that the knobs are named {cpu|memory|io}.pressure, I wonder whether
"cgroup.psi" is the best name. Also, it doesn't convey that it's the
enable/disable knob. I think it needs a better name.
Thanks.
--
tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Chengming Zhou <zhouchengming-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org>
Cc: hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org,
corbet-T1hC0tSOHrs@public.gmane.org,
surenb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
vincent.guittot-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
dietmar.eggemann-5wv7dgnIgG8@public.gmane.org,
rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org,
bsegall-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
songmuchun-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org
Subject: Re: [PATCH v2 09/10] sched/psi: per-cgroup PSI stats disable/re-enable interface
Date: Tue, 9 Aug 2022 07:48:25 -1000 [thread overview]
Message-ID: <YvKd6dezPM6UxfD/@slm.duckdns.org> (raw)
In-Reply-To: <20220808110341.15799-10-zhouchengming-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org>
Hello,
On Mon, Aug 08, 2022 at 07:03:40PM +0800, Chengming Zhou wrote:
> So this patch introduce a per-cgroup PSI stats disable/re-enable
> interface "cgroup.psi", which is a read-write single value file that
> allowed values are "0" and "1", the defaults is "1" so per-cgroup
> PSI stats is enabled by default.
Given that the knobs are named {cpu|memory|io}.pressure, I wonder whether
"cgroup.psi" is the best name. Also, it doesn't convey that it's the
enable/disable knob. I think it needs a better name.
Thanks.
--
tejun
next prev parent reply other threads:[~2022-08-09 17:48 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-08 11:03 [PATCH v2 00/10] sched/psi: some optimization and extension Chengming Zhou
2022-08-08 11:03 ` Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 01/10] sched/psi: fix periodic aggregation shut off Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 02/10] sched/psi: optimize task switch inside shared cgroups again Chengming Zhou
2022-08-08 11:03 ` Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 03/10] sched/psi: move private helpers to sched/stats.h Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 04/10] sched/psi: don't change task psi_flags when migrate CPU/group Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 05/10] sched/psi: don't create cgroup PSI files when psi_disabled Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 06/10] sched/psi: save percpu memory when !psi_cgroups_enabled Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 07/10] sched/psi: remove NR_ONCPU task accounting Chengming Zhou
2022-08-16 10:40 ` Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 08/10] sched/psi: add PSI_IRQ to track IRQ/SOFTIRQ pressure Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 09/10] sched/psi: per-cgroup PSI stats disable/re-enable interface Chengming Zhou
2022-08-09 17:48 ` Tejun Heo [this message]
2022-08-09 17:48 ` Tejun Heo
2022-08-10 0:39 ` Chengming Zhou
2022-08-10 0:39 ` Chengming Zhou
2022-08-10 1:30 ` Chengming Zhou
2022-08-10 1:30 ` Chengming Zhou
2022-08-10 15:25 ` Johannes Weiner
2022-08-10 17:27 ` Tejun Heo
2022-08-11 2:09 ` Chengming Zhou
2022-08-15 13:23 ` Michal Koutný
2022-08-15 13:23 ` Michal Koutný
2022-08-23 6:18 ` Chengming Zhou
2022-08-23 6:18 ` Chengming Zhou
2022-08-23 15:35 ` Johannes Weiner
2022-08-23 15:43 ` Chengming Zhou
2022-08-23 15:43 ` Chengming Zhou
2022-08-23 16:20 ` Tejun Heo
2022-08-23 16:20 ` Tejun Heo
2022-08-12 10:14 ` Michal Koutný
2022-08-12 10:14 ` Michal Koutný
2022-08-12 12:36 ` Chengming Zhou
2022-08-12 12:36 ` Chengming Zhou
2022-08-15 13:23 ` Michal Koutný
2022-08-15 15:49 ` Johannes Weiner
2022-08-15 19:50 ` Tejun Heo
2022-08-15 19:50 ` Tejun Heo
2022-08-16 13:06 ` Chengming Zhou
2022-08-16 13:06 ` Chengming Zhou
2022-08-08 11:03 ` [PATCH v2 10/10] sched/psi: cache parent psi_group to speed up groups iterate Chengming Zhou
2022-08-15 13:25 ` [PATCH v2 00/10] sched/psi: some optimization and extension Michal Koutný
2022-08-15 13:25 ` Michal Koutný
2022-08-16 14:01 ` Chengming Zhou
2022-08-16 14:01 ` Chengming Zhou
2022-08-17 15:19 ` Chengming Zhou
2022-08-17 15:19 ` Chengming Zhou
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=YvKd6dezPM6UxfD/@slm.duckdns.org \
--to=tj@kernel.org \
--cc=bsegall@google.com \
--cc=cgroups@vger.kernel.org \
--cc=corbet@lwn.net \
--cc=dietmar.eggemann@arm.com \
--cc=hannes@cmpxchg.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=songmuchun@bytedance.com \
--cc=surenb@google.com \
--cc=vincent.guittot@linaro.org \
--cc=zhouchengming@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.