From: Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>
To: cgel.zte-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org,
willy-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
shy828301-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
roman.gushchin-fxUVXftIFDnyG1zEObXtfA@public.gmane.org,
shakeelb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
linmiaohe-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
william.kucharski-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org,
peterx-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
hughd-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
vbabka-AlSwsSmVLrQ@public.gmane.org,
songmuchun-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org,
surenb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Yang Yang <yang.yang29-Th6q7B73Y6EnDS1+zs4M5A@public.gmane.org>
Subject: Re: [PATCH] mm/memcg: support control THP behaviour in cgroup
Date: Fri, 6 May 2022 15:41:50 +0200 [thread overview]
Message-ID: <YnUlntNFR4zeD+qa@dhcp22.suse.cz> (raw)
In-Reply-To: <20220505033814.103256-1-xu.xin16-Th6q7B73Y6EnDS1+zs4M5A@public.gmane.org>
On Thu 05-05-22 03:38:15, cgel.zte-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
> From: Yang Yang <yang.yang29-Th6q7B73Y6EnDS1+zs4M5A@public.gmane.org>
>
> Using THP may promote the performance of memory, but increase memory
> footprint. Applications may use madvise to decrease footprint, but
> not all applications support using madvise, and it takes much costs
> to re-code all the applications. And we notice container becomes more
> and more popular to manage a set of tasks.
Could you be more specific about the actual usecase? When do you group
processes based on their general THP reqirements? You are mentioning
containers but those are usually bags of different processes that just
share a common objective.
> So add support for cgroup to control THP behaviour will provide much
> convenience, administrator may only enable THP for important containers,
> and disable it for other containers.
Why would that be a matter of importance?
Also what is actual semantic when processes living inside those cgroups
explicitly state their THP requirements?
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2022-05-06 13:41 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-05 3:38 [PATCH] mm/memcg: support control THP behaviour in cgroup cgel.zte-Re5JQEeQqe8AvxtiuMwx3w
[not found] ` <20220505033814.103256-1-xu.xin16-Th6q7B73Y6EnDS1+zs4M5A@public.gmane.org>
2022-05-05 12:49 ` kernel test robot
2022-05-05 13:31 ` kernel test robot
2022-05-05 16:09 ` kernel test robot
2022-05-06 13:41 ` Michal Hocko [this message]
[not found] ` <YnUlntNFR4zeD+qa-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2022-05-07 2:05 ` CGEL
[not found] ` <6275d3e7.1c69fb81.1d62.4504-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2022-05-09 10:00 ` Michal Hocko
[not found] ` <YnjmPAToTR0C5o8x-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2022-05-09 11:26 ` CGEL
[not found] ` <6278fa75.1c69fb81.9c598.f794-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2022-05-09 11:48 ` Michal Hocko
[not found] ` <Ynj/l+pyFJxKfcbQ-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2022-05-10 1:43 ` CGEL
[not found] ` <6279c354.1c69fb81.7f6c1.15e0-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2022-05-10 10:00 ` Michal Hocko
[not found] ` <Yno3pNQOn1lAMPnu-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2022-05-10 11:52 ` CGEL
[not found] ` <627a5214.1c69fb81.1b7fb.47be-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2022-05-10 13:36 ` Michal Hocko
[not found] ` <YnpqYte2jLdcBiPg-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2022-05-11 1:59 ` CGEL
[not found] ` <627b1899.1c69fb81.cd831.12d9-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2022-05-11 7:21 ` Michal Hocko
2022-05-11 9:47 ` CGEL
2022-05-18 5:58 ` CGEL
2022-05-10 19:34 ` Yang Shi
[not found] ` <CAHbLzkqztB+NXVcxtd7bVo7onH6AcMJ3JWCAHHqH3OAdbZsMOQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2022-05-11 2:19 ` CGEL
[not found] ` <627b1d39.1c69fb81.fe952.6426-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2022-05-11 2:47 ` Shakeel Butt
[not found] ` <CALvZod5aqZjUE8BBQZxwHDBuSWOSEAOqW4_xE22Am0sGZZs4sw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2022-05-11 3:11 ` Roman Gushchin
2022-05-11 3:31 ` CGEL
[not found] ` <627b2df5.1c69fb81.4a22.160f-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2022-05-18 8:14 ` Balbir Singh
2022-05-11 3:17 ` CGEL
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=YnUlntNFR4zeD+qa@dhcp22.suse.cz \
--to=mhocko-ibi9rg/b67k@public.gmane.org \
--cc=akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org \
--cc=cgel.zte-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org \
--cc=hughd-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
--cc=linmiaohe-hv44wF8Li93QT0dZR+AlfA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org \
--cc=peterx-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=roman.gushchin-fxUVXftIFDnyG1zEObXtfA@public.gmane.org \
--cc=shakeelb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
--cc=shy828301-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=songmuchun-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org \
--cc=surenb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
--cc=vbabka-AlSwsSmVLrQ@public.gmane.org \
--cc=william.kucharski-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org \
--cc=willy-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org \
--cc=yang.yang29-Th6q7B73Y6EnDS1+zs4M5A@public.gmane.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