Re: Compiling 6.3->7: lapic frequency madness

From: Kevin Oberman <oberman_at_es.net>
Date: Tue, 18 Mar 2008 14:47:48 -0700
> Date: Tue, 18 Mar 2008 13:24:33 -0700
> From: Sam Leffler <sam_at_freebsd.org>
> Sender: owner-freebsd-current_at_freebsd.org
> 
> Igor Mozolevsky wrote:
> > On 18/03/2008, John Baldwin <jhb_at_freebsd.org> wrote:
> >   
> >> On Tuesday 18 March 2008 11:49:29 am Igor Mozolevsky wrote:
> >>  > On 18/03/2008, John Baldwin <jhb_at_freebsd.org> wrote:
> >>  >
> >>  > > First, which one is broken?  Have you tried a RELENG_7_0 kernel and does
> >>  it do
> >>  > >  the same as a release CD kernel?
> >>  >
> >>  > Tried both ISO image and RELENG_7_0, they both work ok, but RELENG_7
> >>  doesn't...
> >>
> >>
> >> Ok, and it is cpufreq related?  Which cpufreq drivers are attaching to your
> >>  CPU?
> >>     
> >
> > Well, I wouldn't say I'm sure it's 100% cpufreq related, but removing
> > it from the kernel fixes the problem... It's also possible that
> > cpufreq is interfering with something else... Anyhow, I've got both
> > est and p4tcc attaching.
> >
> >   
> I'm having lots of problems with cpu freq throttling on t4x laptops.  
> The system gets very sluggish and when I check the frequency it's been 
> throttled down.  This happens even on ac (haven't checked what powerd is 
> doing then).

Sam,

As I have reported, cpufreq does not play well with the T43. 

I saw the same thing you saw. Pulled cpufreq from my kernel and it's
working fine without it. This includes powerd doing its thing and a
normal list of speed/energy values from 'sysctl dev.cpu.0'.
dev.cpu.0.freq_levels: 2000/27000 1750/23625 1600/22600 1400/19775
1333/19666 1166/17207 1066/16733 932/14641 800/13800 700/12075 600/10350
500/8625 400/6900 300/5175 200/3450 100/1725
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman_at_es.net			Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751

Received on Tue Mar 18 2008 - 20:47:50 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:39:29 UTC