cpuinfo, bogomips and duo core

Gordan Bobic gordan at bobich.net
Tue Feb 12 09:55:41 UTC 2013


On 11/02/2013 23:07, Reindl Harald wrote:
>
>
> Am 11.02.2013 23:43, schrieb Robert Moskowitz:
>> Do I have this right?
>>
>> since on a duo core system, /proc/cpuinfo reports both cores and a bogomips number for each, that number is the
>> value for a core.  Thus 'in theory' the bogomips for the unit is the sum of the two values (the same in every duo
>> core I have seen)
>
> practically i would say this value is hmm useless

Entirely.

> is it hardcoded in the CPU?
> is it measured?

It is measured.

> if it is measured at which moment of time
> which stepping had the CPU at the moment :-)

It is simply a measure of how fast the CPU can idle (i.e. do nothing).

Gordan


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