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Mr_Shameless
Tux's lil' helper
Joined: 17 Sep 2006
Posts: 90
Location: sumwhere in Asia
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 Posted: Sun Aug 12, 2007 3:47 pm Post subject: T5500 CPU clock speed always show 1000MHz[SOLVED] |
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Hi.
I have a T5500 core 2 duo which runs at 1.66Ghz max. On Windows, the clock speed varies depending on the load. But under Linux, I notice that it's always the same. Here is the output of $cat /proc/cpuinfo: | Code: | processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU T5500 @ 1.66GHz
stepping : 2
cpu MHz : 1000.000
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
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 sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni
monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 3328.34
clflush size : 64
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU T5500 @ 1.66GHz
stepping : 2
cpu MHz : 1000.000
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
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 sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni
monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 3325.06
clflush size : 64 |
In E17, there's a small widget that shows the CPU clock speed, and it always shows 1000MHz. I tried the Kubuntu Live CD, and it always showed 2 CPUs at 1000MHz, too.
Is this normal? I don't know if there's some settings in the kernel that affects my CPU speed. I remember enabling CPU frequency scaling when compiling the kernel. Or, is it just the widgets not working correctly?
Thank you 
Last edited by Mr_Shameless on Wed Aug 15, 2007 4:55 pm; edited 1 time in total |
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drwook
Veteran
Joined: 30 Mar 2005
Posts: 1324
Location: London
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| Posted: Sun Aug 12, 2007 4:37 pm Post subject: |
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| check out your kernel config to see what cpu frequency govenor you're using - ondemand may be what you're after (assuming intel speedstep config is pretty much the same as amd) |
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Mr_Shameless
Tux's lil' helper
Joined: 17 Sep 2006
Posts: 90
Location: sumwhere in Asia
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| Posted: Wed Aug 15, 2007 4:55 pm Post subject: |
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I'm really sorry.
I had a more careful look at the applet in E17 and found out that it allowed changing the CPU frequency manually. It also had an option to set the speed automatically. (Previously I thought that was just something to display the speed). So this is just the matter of finding an appropriate applet for the desktop i'm using.
From now on i'll be more careful before posting anything. Sorry  |
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