archive mirror
 help / color / mirror / Atom feed
From: Stefano Rivoir <>
To: Andrew Morton <>
Subject: Re: Disk performance degradation
Date: Wed, 30 Jul 2003 18:06:18 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Andrew Morton wrote:

> Stefano Rivoir <> wrote:

>>Thanks for the hint. This seems to make things a little better, but I'm
>>still far away from 2.4 performances. I thought that anticipatory sched
>>could be part of the problem, and booting with elevator=deadline
>>does a little better... but using 2.4 is completely another thing.
>>By the way, -a 512 vs -a 8 is a kernel "change" or an hdpam one?
> What makes you think it is a disk performance problem at all?  All we know
> is that KDE applications take longer to start up, yes?

> How much memory is in that machine?  Can you run a `vmstat 1' trace during
> the "slow" operations?

I think I've got it. 2.4 fails to load DRI, so when X is up there is
memory available until the load of gnucash, the last operation. 2.6
loads dri and probably this eats too much too early, causing the
system to touch swap since the first operation after X startup. This
does not happen anymore disabling DRI in X.

Sorry for wasting your time :(


Stefano RIVOIR

  reply	other threads:[~2003-07-30 16:06 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-29 16:21 Disk performance degradation Voluspa
2003-07-29 16:50 ` Lou Langholtz
2003-07-30  4:17   ` Voicu Liviu
2003-07-30 21:02   ` Mike Dresser
2003-07-31  8:35     ` Måns Rullgård
2003-07-31 14:00       ` Mike Dresser
2003-07-31 21:15       ` Andrew Morton
2003-07-31 22:17         ` Bartlomiej Zolnierkiewicz
2003-07-30  8:50 ` Stefano Rivoir
2003-07-30 10:55   ` Andrew Morton
2003-07-30 16:06     ` Stefano Rivoir [this message]
2003-07-30 18:44       ` Andrew Morton
2003-07-31  0:21         ` Rahul Karnik
2003-07-31  6:59         ` Stefano Rivoir
2003-07-31  7:16           ` Andrew Morton
  -- strict thread matches above, loose matches on Subject: below --
2003-07-30 11:43 Frederick, Fabian
2003-07-29 12:00 Stefano Rivoir

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:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \

* 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).