From: Minchan Kim <minchan.kim@gmail.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>,
"balbir@linux.vnet.ibm.com" <balbir@linux.vnet.ibm.com>,
Ying Han <yinghan@google.com>,
Johannes Weiner <jweiner@redhat.com>,
Michal Hocko <mhocko@suse.cz>
Subject: Re: [PATCH][BUGFIX] memcg fix zone congestion
Date: Fri, 13 May 2011 12:53:40 +0900 [thread overview]
Message-ID: <BANLkTinbMUsB_4Qn6OFEQBYJwFWza_N9eg@mail.gmail.com> (raw)
In-Reply-To: <20110513121030.08fcae08.kamezawa.hiroyu@jp.fujitsu.com>
On Fri, May 13, 2011 at 12:10 PM, KAMEZAWA Hiroyuki
<kamezawa.hiroyu@jp.fujitsu.com> wrote:
>
> ZONE_CONGESTED should be a state of global memory reclaim.
> If not, a busy memcg sets this and give unnecessary throttoling in
> wait_iff_congested() against memory recalim in other contexts. This makes
> system performance bad.
>
> I'll think about "memcg is congested!" flag is required or not, later.
> But this fix is required 1st.
It's reasonable.
>
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
--
Kind regards,
Minchan Kim
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2011-05-13 3:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-13 3:10 KAMEZAWA Hiroyuki
2011-05-13 3:53 ` Minchan Kim [this message]
2011-05-13 4:15 ` Daisuke Nishimura
2011-05-13 6:24 ` KAMEZAWA Hiroyuki
2011-05-13 5:25 ` Ying Han
2011-05-13 6:25 ` KAMEZAWA Hiroyuki
2011-05-13 6:25 ` Andrew Morton
2011-05-13 6:52 ` KAMEZAWA Hiroyuki
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=BANLkTinbMUsB_4Qn6OFEQBYJwFWza_N9eg@mail.gmail.com \
--to=minchan.kim@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=balbir@linux.vnet.ibm.com \
--cc=jweiner@redhat.com \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=linux-mm@kvack.org \
--cc=mhocko@suse.cz \
--cc=nishimura@mxp.nes.nec.co.jp \
--cc=yinghan@google.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