From: Rik van Riel <riel@conectiva.com.br>
To: Andrew Morton <akpm@zip.com.au>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: how not to write a search algorithm
Date: Sun, 4 Aug 2002 10:16:11 -0300 (BRT) [thread overview]
Message-ID: <Pine.LNX.4.44L.0208041015350.23404-100000@imladris.surriel.com> (raw)
In-Reply-To: <3D4CE74A.A827C9BC@zip.com.au>
On Sun, 4 Aug 2002, Andrew Morton wrote:
> head tail
> active_list: <800M of ZONE_NORMAL> <200M of ZONE_HIGHMEM>
> inactive_list: <1.5G of ZONE_HIGHMEM>
>
> now, somebody does a GFP_KERNEL allocation.
>
> uh-oh.
> Per-zone LRUs will fix it up. We need that anyway, because a ZONE_NORMAL
> request will bogusly refile, on average, memory_size/800M pages to the
> head of the inactive list, thus wrecking page aging.
>
> Alan's kernel has a nice-looking implementation. I'll lift that out
> next week unless someone beats me to it.
Good to hear that you found this one ;)
cheers,
Rik
--
Bravely reimplemented by the knights who say "NIH".
http://www.surriel.com/ http://distro.conectiva.com/
--
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/
next prev parent reply other threads:[~2002-08-04 13:16 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-04 8:35 Andrew Morton
2002-08-04 13:16 ` Rik van Riel [this message]
2002-08-04 20:00 ` Andrew Morton
2002-08-04 19:54 ` Rik van Riel
2002-08-04 20:38 ` William Lee Irwin III
2002-08-04 21:09 ` Andrew Morton
2002-08-04 22:02 ` William Lee Irwin III
2002-08-04 22:43 ` Andrew Morton
2002-08-04 22:47 ` William Lee Irwin III
2002-08-05 3:00 ` Andrew Morton
2002-08-05 2:55 ` Rik van Riel
2002-08-05 7:40 ` William Lee Irwin III
2002-08-05 8:44 ` Andrew Morton
2002-08-05 10:50 ` William Lee Irwin III
2002-08-04 22:45 ` Daniel Phillips
2002-08-04 23:03 ` Andrew Morton
2002-08-04 23:00 ` William Lee Irwin III
2002-08-04 23:02 ` Daniel Phillips
2002-08-04 23:21 ` Andrew Morton
2002-08-05 0:03 ` Daniel Phillips
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=Pine.LNX.4.44L.0208041015350.23404-100000@imladris.surriel.com \
--to=riel@conectiva.com.br \
--cc=akpm@zip.com.au \
--cc=linux-mm@kvack.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