Messages in this thread | | | Date | Wed, 11 Jun 2008 06:58:16 -0700 | From | Arjan van de Ven <> | Subject | Re: PROBLEM: no cpu MHz in /proc/cpuinfo on 2.6.25.4-rt6 |
| |
On Wed, 11 Jun 2008 15:52:57 +0200 (CEST) Jan Engelhardt <jengelh@medozas.de> wrote:
> > On Wednesday 2008-06-11 15:36, Arjan van de Ven wrote: > >> >> btw this is scary; the Mhz line in /proc/cpuinfo doesn't have > >> >> much meaning really, so applications using it and depending on > >> >> it is a rather big disaster ;-( > >> >> > >> >> Does anyone know why jackd wants to use this? > >> > >> It would be nice to have a /sys file where the CPU frequency is in, > > > >may I ask why? What would you do with it? > > Off the top off the head, just for reporting to the user. Desklets > and stuff.
even then it doesn't mean much ;-(
> >CPU frequency is... > >1) not something that is fixed; it changes all the time > >2) not a good indication for performance; remember the 3.4Ghz > >pentium4, a 2Ghz Core2Duo outperforms it > >3) something which the cpu itself barely honors (the clock stops > >during idle etc etc)
-- If you want to reach me at my work email, use arjan@linux.intel.com For development, discussion and tips for power savings, visit http://www.lesswatts.org
| |