From: Andrea Arcangeli <andrea@suse.de>
To: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [BUG] Error reading multiple large files
Date: Thu, 10 Jan 2002 16:37:42 +0100 [thread overview]
Message-ID: <20020110163742.N3357@inspiron.school.suse.de> (raw)
In-Reply-To: <Pine.LNX.4.30.0201071941100.13561-100000@mustard.heime.net>
In-Reply-To: <Pine.LNX.4.30.0201071941100.13561-100000@mustard.heime.net>; from roy@karlsbakk.net on Mon, Jan 07, 2002 at 07:45:57PM +0100
On Mon, Jan 07, 2002 at 07:45:57PM +0100, Roy Sigurd Karlsbakk wrote:
> Hi all
>
> I've sent this before, but as far as I can see, nothing's changed.
>
> I'm having problems reading multiple large files at once. Reading 100 1GB
> files at once.
>
> What happens is, when the buffer cache gets filled up, it all stalls, and
> transfer speed drops from 40-50 MB/s to a mere 2MB/s.
>
> This has been tested on all versions from 2.4.16-2.4.18-pre1.
please try to reproduce on 2.4.18pre2aa2:
ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.18pre2aa2.bz2
>
> I've been testing Tux, Khttpd, apache 1.3.22, Apache 2, thttpd, cp and
> dd to verify the bug.
tux latest version is just included in -aa. please don't apply any
incremental patch before testing 18pre2aa2 to be sure the problem is not
introduced by some other patch.
>
> Please help!
>
> roy
>
> --
> Roy Sigurd Karlsbakk, MCSE, MCNE, CLS, LCA
>
> Computers are like air conditioners.
> They stop working when you open Windows.
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
Andrea
next prev parent reply other threads:[~2002-01-10 15:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-07 18:45 Roy Sigurd Karlsbakk
2002-01-07 23:01 ` Marcelo Tosatti
2002-01-09 10:44 ` Roy Sigurd Karlsbakk
2002-01-10 15:37 ` Andrea Arcangeli [this message]
[not found] <Pine.LNX.4.33.0201071413250.5017-100000@coffee.psychology.mcmaster.ca>
2002-01-09 13:56 ` Roy Sigurd Karlsbakk
2002-01-09 13:59 ` Jens Axboe
2002-01-09 14:03 ` Roy Sigurd Karlsbakk
2002-01-09 14:03 ` Rik van Riel
2002-01-09 14:05 ` Roy Sigurd Karlsbakk
2002-01-09 14:25 ` MrChuoi
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