System extremely slow under light load

[Marat N.Afanasyev]

Bartosz Fabianowski wrote:
>>> Just for an experiment, try to disable powerd and look if things
>>> improve.
>>
>> Or just bump it to "maximum", temporarily.
>
> I have tried both now. The results are as follows:
>
> * With powerd disabled and the CPU clocked down, the computer is
> responsive when almost nothing is going on but becomes very slow as soon
> as there is a light load. This is identical to the behavior I am seeing
> with powerd enabled and a reduced maximum frequency.
>
> * With powerd disabled and the CPU clocked to its full speed, the
> computer is running much hotter but responsiveness is not improved.
>
> It appears that powerd is not at fault. Something else is making this
> computer run unbelievably slow. My Atom netbook regularly outperforms
> this Core i7 when building ports. This just cannot be right :(.
>
> - Bartosz
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did you test the caches? I've seen such a behavior when cpu cache was 
disabled. and it can be thermal throttle in case of bad contact between 
cpu and heatsink. try to reapply thermal compound

-- 
SY, Marat