cpu frequency problem

[Aaron]

Victor Sterpu wrote:
> I use Ubuntu 8
> I have a acer travelmate 5720 dual core 2.2Gh Intel.
> When I do cat /proc/cpuinfo I se this:
> ...
> model name    : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
> stepping    : 11
> cpu MHz        : 800.000
> ...
>
> I did a test with lmbench and the cpu frequency is reported as
> [MHZ: 2378 MHz, 0.4205 nanosec clock]
>
> What is the correct frequency?
> Why this 2 values do not fit?
>
> Thank you.
>
>   
When I do cat /proc/cpuinfo the following is displayed.

model name	: Intel(R) Core(TM)2 Quad CPU    Q6600  @ 2.40GHz
stepping	: 11
cpu MHz		: 1600.000


This is because 2400Mhz is load speed and 1600Mhz is idle to save power 
and reduce heat. You can turn off this feature in a lot of motherboards, 
but there is no benefit from doing so.