Re: The /sbin/update Daemon

Richard B. Johnson (
Sun, 3 Aug 1997 21:34:08 -0400 (EDT)

On Mon, 4 Aug 1997, Marcus B wrote:

> On Sun, 3 Aug 1997, Richard B. Johnson wrote:
> >Update periodically flushes dirty file-buffers to disk. If it isn't

> That's very interesting, since every 10-20 minutes (even 30) after making
> the hard-dirve do lots of work (except compiles?), I virtually lose my
> computer for about 2-3 mins due to long continuous hard-drive activity, is
> this update?
Nope, not unless your file-system is on a floppy. You just can't have
enough dirty buffers to keep your disk active for 2-3 minutes. It looks
like you have a low RAM problem and you are seeing "thrashing" of the
swap file (partition).

Generally, your swap file size should be one of the following:

(1) At least 64 megabytes.
(2) Three times your RAM size.

... which ever is greater.

You should use a swap partition instead of a swap file although files
work for temporary work-arounds. A seperate swap DISK is usually even

Richard B. Johnson
Analogic Corporation
Penguin : Linux version 2.1.44 on an i586 machine (66.15 BogoMips).
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