CPU Problem?
Oliver Kiessler
oliver.kiessler at gmail.com
Sun Nov 14 22:31:50 UTC 2004
thanks, jonathan! I found out that I have "cpuspeed" running. when I
do something CPU intensive, the higher frequency is being used.
bash-3.00$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz
stepping : 9
cpu MHz : 3057.131
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
xtpr
bogomips : 6045.69
On Sun, 14 Nov 2004 16:22:50 -0600, Jonathan Berry <berryja at gmail.com> wrote:
> Hi Oliver,
>
> On Sun, 14 Nov 2004 23:07:38 +0100, Oliver Kiessler
>
>
> <oliver.kiessler at gmail.com> wrote:
> > the directory exits. this is what it says:
> >
> > [root at stmarks cpufreq]# ls
> > cpuinfo_cur_freq scaling_available_governors scaling_max_freq
> > cpuinfo_max_freq scaling_cur_freq scaling_min_freq
> > cpuinfo_min_freq scaling_driver scaling_setspeed
> > scaling_available_frequencies scaling_governor
> >
> > [root at stmarks cpufreq]# cat cpuinfo_cur_freq
> > 1599960
> >
> > [root at stmarks cpufreq]# cat cpuinfo_max_freq
> > 3066590
> >
> > [root at stmarks cpufreq]# cat cpuinfo_min_freq
> > 1599960
> >
> > [root at stmarks cpufreq]# cat scaling_available_frequencies
> > 3066590 1599960
> >
> > [root at stmarks cpufreq]# cat scaling_available_governors
> > userspace performance
> >
> > [root at stmarks cpufreq]# cat scaling_cur_freq
> > 1599960
> >
> > [root at stmarks cpufreq]# cat scaling_driver
> > speedstep-ich
> >
> > [root at stmarks cpufreq]# cat scaling_governor
> > userspace
> >
> > [root at stmarks cpufreq]# cat scaling_max_freq
> > 3066590
> >
> > [root at stmarks cpufreq]# cat scaling_min_freq
> > 1599960
> >
> > [root at stmarks cpufreq]# cat scaling_setspeed
> > 1599960
> >
> > regards,
> > oliver
> >
>
> Okay, good. Now, do you have a frequency scaling governor running?
> If you do and you do something CPU intensive (say, bzip2 a large file,
> or compile a program or something), then you should see the frequency
> in /proc/cpuinfo, scaling_cur_freq, and scaling_setspeed change to the
> higher frequency while it is doing something. Afterwards, it will
> fall back down. If this works, then everything is okay and you will
> use your 3.06 GHz when you need it, and use less power at 1.6 Ghz when
> you don't.
>
> If you cannot seem to get it to go to the higher frequecy, try as root:
> cat scaling_max_freq > scaling_setspeed
> in the same directory as above. If you are then running at the higher
> frequency, then you probably do not have a governor installed.
> Perhaps try "yum install cpufreqd" or look around for another
> governor. I'm not sure what all is available for a Mobile P4.
>
> Jonathan
>
> PS. You need to add the mailing list to the To: addresses when
> responding, since I'm sending this directly to you as well.
>
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