| 1 |
On Wed, Dec 29, 2010 at 11:55 AM, Stefan G. Weichinger <lists@×××××.at>wrote: |
| 2 |
|
| 3 |
> Am 29.12.2010 19:48, schrieb Bill Longman: |
| 4 |
> |
| 5 |
> > 10:47:00# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_* |
| 6 |
> > 2667000 2666000 2533000 2399000 2266000 2133000 1999000 1866000 1733000 |
| 7 |
> > 1599000 1466000 1333000 1199000 |
| 8 |
> > conservative ondemand userspace powersave performance |
| 9 |
> > 1199000 |
| 10 |
> > acpi-cpufreq |
| 11 |
> > performance |
| 12 |
> > 1199000 |
| 13 |
> > 1199000 |
| 14 |
> > <unsupported> |
| 15 |
> > |
| 16 |
> > See what I mean? |
| 17 |
> |
| 18 |
> I see it but I don't have a solution. |
| 19 |
> |
| 20 |
> Maybe some strange limitation within the BIOS of the motherboard? |
| 21 |
> Ah, you wrote that Win does fine ... so ... |
| 22 |
> |
| 23 |
> Do you have the correct CPU chosen in your kernel-config? |
| 24 |
> |
| 25 |
> Maybe someone with a core i7 could help out here better than me ... |
| 26 |
> |
| 27 |
> google finds me this one pointing at apic: |
| 28 |
> |
| 29 |
> http://ubuntuforums.org/archive/index.php/t-1000132.html |
| 30 |
> |
| 31 |
> ? |
| 32 |
> |
| 33 |
|
| 34 |
Here are some powertop results I see when compiling world: |
| 35 |
|
| 36 |
PowerTOP version 1.13 (C) 2007 Intel Corporation |
| 37 |
|
| 38 |
Cn Avg residency P-states (frequencies) |
| 39 |
C0 (cpu running) (100.0%) Turbo Mode 0.0% |
| 40 |
polling 0.0ms ( 0.0%) 2.67 Ghz 0.0% |
| 41 |
C1 mwait 0.0ms ( 0.0%) 2.54 Ghz 0.0% |
| 42 |
C2 mwait 0.0ms ( 0.0%) 2.40 Ghz 0.0% |
| 43 |
C3 mwait 0.0ms ( 0.0%) 1199 Mhz 100.0% |
| 44 |
|
| 45 |
So it seems like all the CPU Power state is fine internally to the CPU but, |
| 46 |
it's just that it cannot go to the higher speeds for some reason. |
| 47 |
|
| 48 |
|
| 49 |
-- |
| 50 |
Bill Longman |
Archives