686 kernel wastes CPU power

Kenneth P. Turvey kt-usenet at squeakydolphin.com
Thu Apr 13 00:30:03 UTC 2006

Hash: SHA1

On Wed, 12 Apr 2006 08:56:10 -0400, Matt Patterson wrote:

> I just ran a dapper update a few days ago, and at the same time I switched
> to the 686 kernel (had been running 386 kernel). After the update I
> noticed a huge hit to my CPU usage (sucking down my battery life). Just
> sitting in gnome with a terminal running top could take 11% and running
> the system monitor would take 40%. I went back to the 386 kernel (the
> newest dapper one) and those numbers dropped to 0.1% and 5% respectively.
> Anybody have any clues?

I'm running a 686 kernel.  It is custom built, but that shouldn't matter. 
Everything runs great.  I think if this was really a kernel issue the
Linux kernel programmers would have noticed this a long time ago.  I
suspect you had issues somewhere else.  Possibly these issues were simply
reporting problems and not actually more CPU time going to a process? 
Did you try using time to compare how much cpu time the same program eats
on both configurations?

- -- 
Kenneth P. Turvey <kt-usenet at squeakydolphin.com>

XMPP  IM: kpturvey at jabber.org
Yahoo IM: kpturvey2
Version: GnuPG v1.4.1 (GNU/Linux)


More information about the ubuntu-users mailing list