Re: IO scheduler based IO controller V10

From: Vivek Goyal
Date: Fri Oct 02 2009 - 11:32:29 EST


On Fri, Oct 02, 2009 at 05:27:55PM +0200, Corrado Zoccolo wrote:
> On Fri, Oct 2, 2009 at 2:49 PM, Vivek Goyal <vgoyal@xxxxxxxxxx> wrote:
> > On Fri, Oct 02, 2009 at 12:55:25PM +0200, Corrado Zoccolo wrote:
> >
> > Actually I am not touching this code. Looking at the V10, I have not
> > changed anything here in idling code.
>
> I based my analisys on the original patch:
> http://lkml.indiana.edu/hypermail/linux/kernel/0907.1/01793.html
>

Oh.., you are talking about fairness for seeky process patch. I thought
you are talking about current IO controller patches. Actually they both
have this notion of "fairness=1" parameter but do different things in
patches, hence the confusion.

Thanks
Vivek


> Mike, can you confirm which version of the fairness patch did you use
> in your tests?
>
> Corrado
>
> > Thanks
> > Vivek
> >
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