> On 05/07/2012 08:25 PM, Warp wrote:
>
>> What the number is telling is how many virtual cores are being used at
>> the moment by that process (assuming that it's using all of the virtual
>> cores fully).
>
> Ah, I see. The number measures the amount of processor time /allocated/
> by the OS, not the amount of actual computation process made. Got it.
>
> So if a task spends most of its time idle due to cache misses or sharing
> executing units with a second hyperthreaded task, or whatever, the OS
> can't easily measure that.
>

Exactly.  On my underpowered Stinkpad, TaskMangler will routinely report 
that the 2 cores are about 12-15% each, but the whole PC has become 
almost unresponsive since it's swapping and the swapfile sits on a 
software encrypted disk*, so the PGP task needs to be swapped in to 
encrypt/decrypt every swap file activity.

*Don't ask.  Company policy.
-- 
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/*        @        */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/*   gmail.com     */}camera{orthographic location<6,1.25,-6>look_at a }

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