Ubuntu CPU scaling ignoring me more than my daughter does

[David Kramer]

On 03/10/2011 06:54 AM, Dan Ritter wrote:
> On Wed, Mar 09, 2011 at 11:11:11PM -0500, David Kramer wrote:
>> On 03/09/2011 12:13 PM, Nuno Sucena Almeida wrote:
>>> On Sunday, March 06, 2011 11:42:58 PM David Kramer wrote:
>>>> What else can I try?
>>>
>>> As a temporary measure you can try to disable power saving from the computer 
>>> BIOS ?
>>> I did a quick search and found the following bug
>>> <https://bugs.launchpad.net/ubuntu/+source/cpufreqd/+bug/637845>
>>>
>>> and from comment #12 onwards:
>>>
>>> <https://bugs.launchpad.net/ubuntu/+source/cpufreqd/+bug/637845/comments/12>
>>> "
>>> To see if you have the same problem, do a:
>>> $ cat /sys/devices/system/cpu/cpu0/cpufreq/bios_limit
>>> In my case, anything less than 2400000 means the workaround is necessary.
>>
>> Hmm.  I don't even have that file.
> 
> Sounds like you haven't loaded the appropriate module to control
> your CPU's power saving feature.
> 
> What CPU? From /proc/cpuinfo, please?

I thought the problem is it's controlling the speed *too much*.
This is a Del Latitude D820

# cat /proc/cpuinfo
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Core(TM)2 CPU         T7200  @ 2.00GHz
stepping	: 6
cpu MHz		: 1000.000
cache size	: 4096 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
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 nx lm constant_tsc
arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2
ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow
bogomips	: 3994.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Core(TM)2 CPU         T7200  @ 2.00GHz
stepping	: 6
cpu MHz		: 1000.000
cache size	: 4096 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
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 nx lm constant_tsc
arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2
ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow
bogomips	: 3994.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management: