Re: 2.6.9-rc1-mm1

Con Kolivas
2004-08-27T01:14:24Z

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Martin J. Bligh wrote:
> --On Friday, August 27, 2004 10:46:45 +1000 Con Kolivas <kernel@kolivas.org> wrote:
>
>
>>Nuno Silva wrote:
>>
>>>Con Kolivas wrote:
>>>
>>>>If you're talking about using the embedded image viewer in kde, that
>>>>spins on wait and wastes truckloads of cpu (a perfect example of poor
>>>>coding). Try loading it an external viewer and it will be 1000 times
>>>>faster. If you're talking about it keeping the disk too busy on the
>>>>other hand, that's I/O scheduling.
>>>>
>>>
>>>The question is: "can a poorly coded app hang the system for 30secs?"
>>>
>>>That's a DoS ;-)
>>
>>It does not hang the system, only it's dependant tasks (ie other kde thingies)
>
>
> the display app (not KDE), however, at least seems to deny X of enough time
> that the mouse cursor won't move. Much badness! ;-)

Yes, priority inversion is a nasty thing indeed.

Cheers,
Con

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