On Mon, 31 Jul 2000, Jeroen Geusebroek wrote:
> Could someone explain what kupdate and kflushd do? I have a
> strange problem, when i ftp to my server, i get like 6500Kb/s
> for the first then seconds. That's the same speed i get to
> another server on the same subnet.
>
> But within a few seconds the CPS suddenly drops to 2500kb/s and
> when i look at the server i see that kupdate takes 80% of the
> cpu usage.
This is expected behaviour. After memory is filled with
dirty buffers, the programs writing to disk are slowed
down to disk speeds.
> I tried to disable kupdate ( i searched the mailinglist on how
> to do that ) kflushd had the same behaviour.
*sigh* ;)
> Coould some explain what could be causing the trouble? I'm using
> the 2.2.16 kernel.
You're slowed down to 2500kb/s either because the disk isn't
faster or because you forgot to use hdparm to switch your
drive to DMA mode...
cheers,
Rik
--
"What you're running that piece of shit Gnome?!?!"
-- Miguel de Icaza, UKUUG 2000
http://www.conectiva.com/ http://www.surriel.com/
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This archive was generated by hypermail 2b29 : Mon Jul 31 2000 - 21:00:35 EST