From: Bill Davidsen <davidsen@deathstar.prodigy.com>
To: linux-kernel@vger.kernel.org
Subject: Re: VM test on 2.4.13-pre3aa1 (compared to 2.4.12-aa1 and 2.4.13-pre2aa1)
Date: Thu, 18 Oct 2001 15:45:42 -0400 [thread overview]
Message-ID: <200110181945.f9IJjg106861@deathstar.prodigy.com> (raw)
In-Reply-To: <20011017004839.A15996@earthlink.net>
In article <20011017004839.A15996@earthlink.net> rwhron@earthlink.net wrote:
>On Wed, Oct 17, 2001 at 04:31:03AM +0200, Andrea Arcangeli wrote:
>> I noticed that anotehr thing that changed between vanilla 2.4.13pre2 and
>> 2.4.13pre3 is the setting of page_cluster on machine with lots of ram.
>>
>> You'll now find the page_cluster set to 6, that means "1 << 6 << 12"
>> bytes will be paged in at each major fault, while previously only "1 <<
>> 4 << 12" bytes were paged in.
>>
>> So I'd suggest to try again after "echo 4 > /proc/sys/vm/page-cluster"
>> to see if it makes any difference.
>>
>> Andrea
>
>You Rule!
>
>The tweak to page-cluster is basically magic for this test.
Out of curiousity, did you play with the 'preempt' patch at all?
--
bill davidsen <davidsen@tmr.com>
His first management concern is not solving the problem, but covering
his ass. If he lived in the middle ages he'd wear his codpiece backward.
next prev parent reply other threads:[~2001-10-18 19:45 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-16 12:16 rwhron
2001-10-17 0:12 ` Andrea Arcangeli
2001-10-17 1:32 ` Beau Kuiper
2001-10-17 2:09 ` Andrea Arcangeli
2001-10-18 19:36 ` bill davidsen
2001-10-18 23:27 ` Andrea Arcangeli
2001-10-17 2:31 ` Andrea Arcangeli
2001-10-17 4:48 ` rwhron
2001-10-17 16:27 ` Linus Torvalds
2001-10-17 15:19 ` Marcelo Tosatti
2001-10-18 19:45 ` Bill Davidsen [this message]
2001-10-17 3:59 ` rwhron
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=200110181945.f9IJjg106861@deathstar.prodigy.com \
--to=davidsen@deathstar.prodigy.com \
--cc=linux-kernel@vger.kernel.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
all inboxes | Powered by JetHome®