From: Chengming Zhou <zhouchengming@bytedance.com>
To: "Michal Koutný" <mkoutny@suse.com>
Cc: hannes@cmpxchg.org, 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 00/10] sched/psi: some optimization and extension
Date: Wed, 17 Aug 2022 23:19:18 +0800 [thread overview]
Message-ID: <42c6d11d-d68a-e869-375e-550c495be5bb@bytedance.com> (raw)
In-Reply-To: <08ec9c4f-80b2-f731-aa8b-fb4e852ece25@bytedance.com>
On 2022/8/16 22:01, Chengming Zhou wrote:
> On 2022/8/15 21:25, Michal Koutný wrote:
>> On Mon, Aug 08, 2022 at 07:03:31PM +0800, Chengming Zhou <zhouchengming@bytedance.com> wrote:
>>> This patch series are some optimization and extension for PSI,
>>
>> BTW do you have some numbers/example how much these modifications save
>> when aggregated together?
>>
Sorry about delay...
Performance test using mmtests/config-scheduler-perfpipe in /user.slice/user-0.slice/session-4.scope
next patched patched/only-leaf
Min Time 8.82 ( 0.00%) 8.49 ( 3.74%) 8.00 ( 9.32%)
1st-qrtle Time 8.90 ( 0.00%) 8.58 ( 3.63%) 8.05 ( 9.58%)
2nd-qrtle Time 8.94 ( 0.00%) 8.61 ( 3.65%) 8.09 ( 9.50%)
3rd-qrtle Time 8.99 ( 0.00%) 8.65 ( 3.75%) 8.15 ( 9.35%)
Max-1 Time 8.82 ( 0.00%) 8.49 ( 3.74%) 8.00 ( 9.32%)
Max-5 Time 8.82 ( 0.00%) 8.49 ( 3.74%) 8.00 ( 9.32%)
Max-10 Time 8.84 ( 0.00%) 8.55 ( 3.20%) 8.04 ( 9.05%)
Max-90 Time 9.04 ( 0.00%) 8.67 ( 4.10%) 8.18 ( 9.51%)
Max-95 Time 9.04 ( 0.00%) 8.68 ( 4.03%) 8.20 ( 9.26%)
Max-99 Time 9.07 ( 0.00%) 8.73 ( 3.82%) 8.25 ( 9.11%)
Max Time 9.12 ( 0.00%) 8.89 ( 2.54%) 8.27 ( 9.29%)
Amean Time 8.95 ( 0.00%) 8.62 * 3.67%* 8.11 * 9.43%*
Thanks!
prev parent reply other threads:[~2022-08-17 15:19 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
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 ` [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
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 [this message]
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