cpu frequency scaling monitor

I found how to change the processor speed of my Eee PC 701. It is modprobe p4-clockmod. Before the change it runs at 630 MHz and after at 900 MHz and I can change the cpu frequency with the applet to any of 900, 787, 675, 562, 450, 337, 225, 112 MHz. How to make the change permanent? Or better yet, to make it vary on demand?

Code:

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$ cat /proc/cpuinfo
processor    : 0
vendor_id    : GenuineIntel
cpu family    : 6
model        : 13
model name    : Intel(R) Celeron(R) M processor          900MHz
stepping    : 8
cpu MHz        : 630.181
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 sep mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx up bts
bogomips    : 1260.36
clflush size    : 64
cache_alignment    : 64
address sizes    : 32 bits physical, 32 bits virtual
power management:

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Code:

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# modprobe p4-clockmod

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Code:

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cat /proc/cpuinfo
processor    : 0
vendor_id    : GenuineIntel
cpu family    : 6
model        : 13
model name    : Intel(R) Celeron(R) M processor          900MHz
stepping    : 8
cpu MHz        : 900.000
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 sep mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx up bts
bogomips    : 1260.36
clflush size    : 64
cache_alignment    : 64
address sizes    : 32 bits physical, 32 bits virtual
power management:

---

The answer is: install cpufreqd package

I've just got a used eee pc 701 4g laptop and after

Code:

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modprobe p4-clockmod

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the

Code:

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cat /proc/cpuinfo

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reports 900MHz but in fact it is false because CPU runs at a stock 630MHz.
I ran this

Code:

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time echo "scale=1500; 4*a(1)" | bc -l

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and there is no difference when using 900MHz or 630MHz speeds.

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