Messages in this thread | ![/](/images/icornerl.gif) | | From | Marc-Christian Petersen <> | Subject | Re: 2.4.20: Proccess stuck in __lock_page ... | Date | Tue, 27 May 2003 22:53:06 +0200 |
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On Tuesday 27 May 2003 22:45, Andrea Arcangeli wrote:
Hi Andrea,
> > I try to backport BIO and then AS for quite over 2 weeks now, but it > > seems, at least for me, that it's an impossible mission ;( > bio breaks all drivers, not a good idea to backport ;) HAHAHAH. Another wasted 2 weeks in my life ;-)
But why does it brake all drivers? Could you please elaborate a bit?
> note that the anticipatory scheduler generates very bad results with the > winmark. it certainly has merits but it has large downsides too. hmm, I am not aware of it, or even I _was_ not aware of it till now.
> I would be also curious if you could compare anticipatory with CFQ. The > CFQ was designed to provide the highest possible degree of fariness. I'll can bench it, sure. I used CFQ before I switched to AS because I was curious about AS and as I didn't see a real difference in latency but AS gave me more throughput, I use AS from now on.
> I read it on l-k yesterday a few days ago, search emails from Linus with > Jens somewhere in CC and you should find it. Already found it :) thank you.
ciao, Marc
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