From: Johannes Weiner <hannes@cmpxchg.org>
To: Chengming Zhou <zhouchengming@bytedance.com>
Cc: Tejun Heo <tj@kernel.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: Wed, 10 Aug 2022 11:25:07 -0400 [thread overview]
Message-ID: <YvPN07UlaPFAdlet@cmpxchg.org> (raw)
In-Reply-To: <b89155d3-9315-fefc-408b-4cf538360a1c@bytedance.com>
On Wed, Aug 10, 2022 at 09:30:59AM +0800, Chengming Zhou wrote:
> On 2022/8/10 08:39, Chengming Zhou wrote:
> > On 2022/8/10 01:48, Tejun Heo wrote:
> >> 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.
> >
> > Yes, "cgroup.psi" is not good. What abort "pressure.enable" or "cgroup.psi_enable"?
>
> Doesn't look good either, what do you think of "cgroup.pressure.enable"?
How about just cgroup.pressure? Too ambiguous?
cgroup.pressure.enable sounds good to me too. Or, because it's
default-enabled and that likely won't change, cgroup.pressure.disable.
next prev parent reply other threads:[~2022-08-10 15:25 UTC|newest]
Thread overview: 32+ 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 ` [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 ` [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
2022-08-10 0:39 ` Chengming Zhou
2022-08-10 1:30 ` Chengming Zhou
2022-08-10 15:25 ` Johannes Weiner [this message]
2022-08-10 17:27 ` Tejun Heo
2022-08-11 2:09 ` Chengming Zhou
2022-08-15 13:23 ` Michal Koutný
2022-08-23 6:18 ` Chengming Zhou
2022-08-23 15:35 ` Johannes Weiner
2022-08-23 15:43 ` Chengming Zhou
2022-08-23 16:20 ` Tejun Heo
2022-08-12 10:14 ` Michal Koutný
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
2022-08-16 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
2022-08-16 14:01 ` Chengming Zhou
2022-08-17 15:19 ` Chengming Zhou
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