Re: 2.6.9-rc1-mm1

From: Con Kolivas
Date: Thu Aug 26 2004 - 20:29:00 EST


Martin J. Bligh wrote:
--On Friday, August 27, 2004 10:46:45 +1000 Con Kolivas <kernel@xxxxxxxxxxx> 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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