From: Wu Fengguang <fengguang.wu@intel.com>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>, Minchan Kim <minchan.kim@gmail.com>,
Andy Whitcroft <apw@shadowen.org>, Rik van Riel <riel@redhat.com>,
Christoph Hellwig <hch@infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Dave Chinner <david@fromorbit.com>,
Chris Mason <chris.mason@oracle.com>,
Nick Piggin <npiggin@suse.de>,
Johannes Weiner <hannes@cmpxchg.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Andreas Mohr <andi@lisas.de>, Bill Davidsen <davidsen@tmr.com>,
Ben Gamari <bgamari.foss@gmail.com>
Subject: Re: [PATCH] vmscan: synchronous lumpy reclaim don't call congestion_wait()
Date: Sun, 1 Aug 2010 18:42:32 +0800 [thread overview]
Message-ID: <20100801104232.GA17573@localhost> (raw)
In-Reply-To: <20100801180751.4B0E.A69D9226@jp.fujitsu.com>
> If the system 512MB memory, DEF_PRIORITY mean 128kB scan and It takes 4096
> shrink_page_list() calls to scan 128kB (i.e. 128kB/32=4096) memory.
Err you must forgot the page size.
128kB means 128kB/4kB=32 pages which fit exactly into one
SWAP_CLUSTER_MAX batch. The shrink_page_list() call times
has nothing to do DEF_PRIORITY.
Thanks,
Fengguang
--
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/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2010-08-01 10:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-01 8:51 [PATCH mmotm] vmscan: raise the bar to PAGEOUT_IO_SYNC stalls Wu Fengguang
2010-08-01 8:55 ` KOSAKI Motohiro
2010-08-01 9:12 ` [PATCH] vmscan: synchronous lumpy reclaim don't call congestion_wait() KOSAKI Motohiro
2010-08-01 10:42 ` Wu Fengguang [this message]
2010-08-01 10:51 ` KOSAKI Motohiro
2010-08-01 13:41 ` Minchan Kim
2010-08-02 4:13 ` KOSAKI Motohiro
2010-08-02 4:38 ` Minchan Kim
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=20100801104232.GA17573@localhost \
--to=fengguang.wu@intel.com \
--cc=aarcange@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=andi@lisas.de \
--cc=apw@shadowen.org \
--cc=bgamari.foss@gmail.com \
--cc=chris.mason@oracle.com \
--cc=david@fromorbit.com \
--cc=davidsen@tmr.com \
--cc=hannes@cmpxchg.org \
--cc=hch@infradead.org \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=kosaki.motohiro@jp.fujitsu.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mel@csn.ul.ie \
--cc=minchan.kim@gmail.com \
--cc=npiggin@suse.de \
--cc=riel@redhat.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;
as well as URLs for NNTP newsgroup(s).