lkml.org 
[lkml]   [2001]   [Dec]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: severe slowdown with 2.4 series w/heavy disk access
Date
It is quite possible your MB routes all disk access straight through the
processor, while using system ram to cache itself. Tar does not (to my
knowledge) limit itself, and is quite nasty on such things. My MB has had
troubles as such before. I know of no workaround, except get a new MB.

><><>< Idrigal of Imladris
----- Original Message -----
From: "Paul Boley" <pboley@home.com>
To: <linux-kernel@vger.kernel.org>
Sent: Tuesday, 25 December, 2001 11:17 PM
Subject: severe slowdown with 2.4 series w/heavy disk access


> I have been having this problem with the whole 2.4 kernel series.. Under
> heavy disk access, the entire system will slow down and almost all of my
> memory, save 5 megs, gets used up, never to return. I am currently
> running 2.4.17 on a machine with 416 megs of ram, Duron 750, not
> overclocked. Cpu temp does not exceed 107 deg F ever, so I don't think
> its a heat issue. I have an MSI K7T Pro2 motherboard, using the KT133
> chipset. Anyway, the following is how I can duplicate the problem, in
> about 5 minutes. I only used mozilla for this because I was working
> with it when I decided to isolate the problem. Also note this happens
> more than just with tar, and sometimes it happens for no apparent reason
> at all.
>
> *** free and ps -ax, before the slowdown:
>
> total used free shared buffers
> cached
> Mem: 417472 30104 387368 0 1264
> 21748
> -/+ buffers/cache: 7092 410380
> Swap: 136544 0 136544
>
> PID TTY STAT TIME COMMAND
> 1 ? S 0:04 init
> 2 ? SW 0:00 [keventd]
> 3 ? SWN 0:00 [ksoftirqd_CPU0]
> 4 ? SW 0:00 [kswapd]
> 5 ? SW 0:00 [bdflush]
> 6 ? SW 0:00 [kupdated]
> 63 ? S 0:00 /usr/sbin/syslogd
> 66 ? S 0:00 /usr/sbin/klogd -c 3
> 78 ? S 0:00 /usr/sbin/atd -b 15 -l 1
> 90 tty1 S 0:00 -bash
> 91 tty2 S 0:00 -bash
> 92 tty3 S 0:00 /sbin/agetty 38400 tty3 linux
> 93 tty4 S 0:00 /sbin/agetty 38400 tty4 linux
> 94 tty5 S 0:00 /sbin/agetty 38400 tty5 linux
> 95 tty6 S 0:00 /sbin/agetty 38400 tty6 linux
> 192 tty2 S 0:00 top
> 200 tty1 R 0:00 ps -ax
>
> *** I then rm -rf'd mozilla, and tar -zxvf mozilla-source-0.9.7.tar.gz,
> *** and immediately after, ran free and ps -ax again. The system
> started
> *** losing memory and slowing down about 10 seconds into the
> *** decompression.
>
> total used free shared buffers
> cached
> Mem: 417472 412192 5280 0 20632
> 315680
> -/+ buffers/cache: 75880 341592
> Swap: 136544 0 136544
>
> PID TTY STAT TIME COMMAND
> 1 ? S 0:04 init
> 2 ? SW 0:00 [keventd]
> 3 ? SWN 0:00 [ksoftirqd_CPU0]
> 4 ? SW 0:00 [kswapd]
> 5 ? SW 0:00 [bdflush]
> 6 ? SW 0:02 [kupdated]
> 63 ? S 0:00 /usr/sbin/syslogd
> 66 ? S 0:00 /usr/sbin/klogd -c 3
> 78 ? S 0:00 /usr/sbin/atd -b 15 -l 1
> 90 tty1 S 0:00 -bash
> 91 tty2 S 0:00 -bash
> 92 tty3 S 0:00 /sbin/agetty 38400 tty3 linux
> 93 tty4 S 0:00 /sbin/agetty 38400 tty4 linux
> 94 tty5 S 0:00 /sbin/agetty 38400 tty5 linux
> 95 tty6 S 0:00 /sbin/agetty 38400 tty6 linux
> 192 tty2 S 0:01 top
> 207 tty1 R 0:00 ps -ax
>
>
> -
> 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/
>
-
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/

\
 
 \ /
  Last update: 2005-03-22 13:14    [from the cache]
©2003-2011 Jasper Spaans. Advertise on this site