From: Rik van Riel <riel@conectiva.com.br>
To: Rajagopal Ananthanarayanan <ananth@sgi.com>
Cc: linux-mm@kvack.org
Subject: Re: Performance: test6, 7-5, 7-5 Multiqueue, history
Date: Sun, 20 Aug 2000 19:15:15 -0300 (BRST) [thread overview]
Message-ID: <Pine.LNX.4.21.0008201911130.5411-100000@duckman.distro.conectiva> (raw)
In-Reply-To: <39A02880.54E3C08@sgi.com>
On Sun, 20 Aug 2000, Rajagopal Ananthanarayanan wrote:
> o test5 continues to yield the best performance.
> o test5 -> test6 (and in test7-5) block I/O performance degraded about 10%.
Interesting, I wonder why this is (and I'll look into it
tomorrow to find out what happened and to fix it).
> o MQ patch yields bad performance in most cases; perhaps changes
> between test7-pre4 and test7-pre5 don't sit well with MQ changes,
> since I used the t7p4 MQ patch.
The problem which causes this is that bdflush in the
multiqueue vm writes out pages in the 'wrong' order
sometimes. I'll fix this ASAP.
(I think I'll make a a heisenbug compensator for the
SMP bug and get on with life)
regards,
Rik
--
"What you're running that piece of shit Gnome?!?!"
-- Miguel de Icaza, UKUUG 2000
http://www.conectiva.com/ http://www.surriel.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.eu.org/Linux-MM/
prev parent reply other threads:[~2000-08-20 22:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-08-20 18:50 Rajagopal Ananthanarayanan
2000-08-20 22:15 ` Rik van Riel [this message]
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.4.21.0008201911130.5411-100000@duckman.distro.conectiva \
--to=riel@conectiva.com.br \
--cc=ananth@sgi.com \
--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