w00t powah !

[Michael Zacherl]

On Jul 23, 2008, at 1:08 PM, M-.-n wrote:

>
> It's still only a question of "mesuring" right ?

right! And how that data is displayed. Logic for instance shows a bar  
for each core.

> Live can use all cores

that I know. I'm looking for inforation how good it is in that.
On my MBP with it's two 2.6GHz cores MacOS X itself never reports a  
utilisation above roughly 120%.
That's very application and OS dependend.
Just now, while I type this, with that HD-video rendering, the entire  
cpu load displayed is at 198% here.

Multithreading, loadbalancing etc. stil has much room for improvement.
Also smooth I/O handling. Regardless what system it is.

After that GHz race and adding more and more cores to the systems  
there's a good reason why vendors start to finally get it and  
(hopefully) began to focus on the utilisation aspect!
E.g.: http://www.macrumors.com/2008/06/10/mac-os-x-snow-leopard-features-and-parallel-computing/

    ;-) Michael.

>
> for sure but at the moment I only use 10% of the 'whole'.
>
> Michael Zacherl a écrit :
>> well ... I put it differently: how much advantage you can draw from
>> your four cores?
>> (some software/systems see all cores as 100% others see a single core
>> of all of them as 100% - hence 400% in your case)



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