On this day, 15-October-2007 10:05 PM, Arjan van de Ven wrote:
> P.V.Anthony wrote:
>
>> localhost ~ # cpufreq-info
>> cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
>> Report errors and bugs to [EMAIL PROTECTED], please.
>> analyzing CPU 0:
>> driver: acpi-cpufreq
>> CPUs which need to switch frequency at the same time: 0
>
> It looks like either cpufreq-info or your BIOS is buggy since this line
> is absolutely incorrect and will give pretty poor power saving behavior
> already
The line, "CPUs which need to switch frequency at the same time: 0"
different for each cpu. The complete print out from cpufreq-info is below.
Using Supermicro PDSME+ motherboard with the latest bios version 1.2c.
Will check the bios setting again.
>
>> hardware limits: 600 MHz - 900 MHz
>
> this can be deceiving... cpufreq-info is interpreting the bios data as
> frequencies, which, while usually the case, isnt' per se defined as
> such. In fact your cpu won't ever go down to 600 or 900 Mhz...
The /proc/cpuinfo also shows that the cpu is 600mhz. I would like to
correct this. Please advice what is needed to be done to correct this.
>> Is there a way to change the max to 2.4ghz? Is there some kernel
>> setting that has to be activated?
>
> It'll be 2.4 Ghz in practice. What worries me a lot more is the "at the
> same time" thing, that'll make things go wrong entirely ;(
It is great to know that the max speed is 2.4ghz.
Thank you for the advice. Here is the full cpufreq-info and /proc/cpuinfo.
Will also check the bios again.
P.V.Anthony
------------------- start cpufreq-info ------------------------
localhost ~ # cpufreq-info
cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to [EMAIL PROTECTED], please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0
hardware limits: 600 MHz - 900 MHz
available frequency steps: 900 MHz, 600 MHz
available cpufreq governors: ondemand, userspace
current policy: frequency should be within 600 MHz and 900 MHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 600 MHz (asserted by call to hardware).
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 1
hardware limits: 600 MHz - 900 MHz
available frequency steps: 900 MHz, 600 MHz
available cpufreq governors: ondemand, userspace
current policy: frequency should be within 600 MHz and 900 MHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 600 MHz (asserted by call to hardware).
analyzing CPU 2:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 2
hardware limits: 600 MHz - 900 MHz
available frequency steps: 900 MHz, 600 MHz
available cpufreq governors: ondemand, userspace
current policy: frequency should be within 600 MHz and 900 MHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 600 MHz (asserted by call to hardware).
analyzing CPU 3:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 3
hardware limits: 600 MHz - 900 MHz
available frequency steps: 900 MHz, 600 MHz
available cpufreq governors: ondemand, userspace
current policy: frequency should be within 600 MHz and 900 MHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 600 MHz (asserted by call to hardware).
------------------- end cpufreq-info --------------------------
-------------------- start /proc/cpuinfo ----------------------
localhost ~ # cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
stepping : 7
cpu MHz : 600.000
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor
ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 4791.65
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) Xeon(R) CPU X3220 @ 2.40GHz
stepping : 7
cpu MHz : 600.000
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor
ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 4788.39
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
stepping : 7
cpu MHz : 600.000
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor
ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 4788.32
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
stepping : 7
cpu MHz : 600.000
cache size : 4096 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor
ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 4788.36
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
-------------------- end /proc/cpuinfo ------------------------
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