Linux benchmark tools

[Net Llama!]

On Thu, 14 Sep 2006, Vu Pham wrote:
> On Thu, 2006-09-14 at 08:46 -0500, Vu Pham wrote:
>> I build a new Suse workstation using Cpu Intel X6700 which is supposed
>> to run at 2.66Mhz. /proc/cpuinfo shows it runs only at 1.6Ghz.
>>
>> A Google search told me that this cpu has SpeedStep technology that will
>> automatically switch the cpu to 1.6Ghz when it is in idle mode and will
>> turn it back to 2.66Ghz when load increases. That's good to save power,
>> but when working on this PC, I think it is slower noticeably than my
>> current workstation.
>>
>> Is there any way to disable Speedstep so that I can check how it works
>> in full speed ?
>>
>> What benchmark tools available for Linux ?
>
>
> I am running two c programs which just do infinite loops of calculating
> some double numbers. top shows two core cpus are very busy up to 100%,
> and /proc/cpuinfo still shows 1.6Ghz.
>
> I wonder if /proc/cpuinfo is periodically updated or just updated when
> the system starts ?

To the best of my knowledge /proc/cpuinfo is static, and is determined 
when the system first boots.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lonni J Friedman                        netllama at linux-sxs.org
LlamaLand				http://netllama.linux-sxs.org