From: Matt Dillon <dillon@earth.backplane.com>
To: Rik van Riel <riel@conectiva.com.br>
Cc: arch@freebsd.org, linux-mm@kvack.org, sfkaplan@cs.amherst.edu
Subject: Re: on load control / process swapping
Date: Sat, 12 May 2001 10:21:28 -0700 (PDT) [thread overview]
Message-ID: <200105121721.f4CHLSS18553@earth.backplane.com> (raw)
In-Reply-To: <Pine.LNX.4.21.0105121109210.5468-100000@imladris.rielhome.conectiva>
:
:Ahhh, so FreeBSD _does_ have a maxscan equivalent, just one that
:only kicks in when the system is under very heavy memory pressure.
:
:That explains why FreeBSD's thrashing detection code works... ;)
:
:(I'm not convinced, though, that limiting the speed at which we
:scan the active list is a good thing. There are some arguments
:in favour of speed limiting, but it mostly seems to come down
:to a short-cut to thrashing detection...)
Note that there is a big distinction between limiting the page
queue scan rate (which we do not do), and sleeping between full
scans (which we do). Limiting the page queue scan rate on a
page-by-page basis does not scale. Sleeping in between full queue
scans (in an extreme case) does scale.
-Matt
--
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.eu.org/Linux-MM/
next prev parent reply other threads:[~2001-05-12 17:21 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-07 21:16 Rik van Riel
2001-05-07 22:50 ` Matt Dillon
2001-05-07 23:35 ` Rik van Riel
2001-05-08 0:56 ` Matt Dillon
2001-05-12 14:23 ` Rik van Riel
2001-05-12 17:21 ` Matt Dillon [this message]
2001-05-12 21:17 ` Rik van Riel
2001-05-12 23:58 ` Matt Dillon
2001-05-13 17:22 ` Rik van Riel
2001-05-15 6:38 ` Terry Lambert
2001-05-15 13:39 ` Cy Schubert - ITSD Open Systems Group
2001-05-15 15:31 ` Rik van Riel
2001-05-15 17:24 ` Matt Dillon
2001-05-15 23:55 ` Roger Larsson
2001-05-16 0:16 ` Matt Dillon
2001-05-16 4:22 ` Kernel Debugger Amarnath Jolad
2001-05-16 7:58 ` Kris Kennaway
2001-05-16 11:42 ` Martin Frey
2001-05-16 12:04 ` R.Oehler
2001-05-16 8:23 ` on load control / process swapping Terry Lambert
2001-05-16 17:26 ` Matt Dillon
2001-05-08 20:52 ` Kirk McKusick
2001-05-09 0:18 ` Matt Dillon
2001-05-09 2:07 ` Peter Jeremy
2001-05-09 19:41 ` Matt Dillon
2001-05-12 14:28 ` Rik van Riel
2001-05-08 12:25 ` Scott F. Kaplan
2001-05-16 15:17 Charles Randall
2001-05-16 17:14 Matt Dillon
2001-05-16 17:41 ` Rik van Riel
2001-05-16 17:54 ` Matt Dillon
2001-05-18 5:58 ` Terry Lambert
2001-05-18 6:20 ` Matt Dillon
2001-05-18 10:00 ` Andrew Reilly
2001-05-18 13:49 ` Jonathan Morton
2001-05-19 2:18 ` Rik van Riel
2001-05-19 2:56 ` Jonathan Morton
2001-05-16 17:57 ` Alfred Perlstein
2001-05-16 18:01 ` Matt Dillon
2001-05-16 18:10 ` Alfred Perlstein
[not found] <OF5A705983.9566DA96-ON86256A50.00630512@hou.us.ray.com>
2001-05-18 20:13 ` Jonathan Morton
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=200105121721.f4CHLSS18553@earth.backplane.com \
--to=dillon@earth.backplane.com \
--cc=arch@freebsd.org \
--cc=linux-mm@kvack.org \
--cc=riel@conectiva.com.br \
--cc=sfkaplan@cs.amherst.edu \
/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