Re: Exaggerated swap usage

Steffen Moser
2002-11-30T13:57:48Z

* On Fri, Nov 29, 2002 at 02:31 PM (-0200), Rik van Riel wrote:

> On Fri, 29 Nov 2002, Javier Marcet wrote:
>
> > In recent 2.4.20 pre and rc kernels ( I tend to use the ac branch ), I
> > had notice my system, when using X mainly, got terribly slow after some
> > use.
>
> First, lets get one thing straight: the problem is the slowness,
> not necessarily the swap usage.

I've experienced a similar problem with "linux-2.4.20-rc2-ac3",
"linux-2.4.20-rc4-ac1" and "linux-2.4.20-ac1". At first I also
thought it's a swap problem, but this seems to be a wrong con-
clusion, too.

The problem occurs, for example, when Mozilla and RealPlayer are
running and I start to compile something or copy large files. The
RealPlayer interrupts, the mouse sometimes doesn't move smoothly
any more, and so on.

Using "linux-2.4.20" I don't see this behaviour.

I've collected some information when running "linux-2.4.20-ac1"
and "linux-2.4.20". I've uploaded it to:

http://www.uni-ulm.de/~s_smoser/lkml/

The "vmstat"- and "ps"-files were created during the "cp" of about
2,5 GB of data from one hard disk to the other one.

Bye,
Steffen