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Re: FESCo Meeting Summary for 20090424

On Sun, 2009-05-03 at 19:34 +0100, Matthew Garrett wrote:
> On Sun, May 03, 2009 at 12:07:43PM -0500, Callum Lerwick wrote:
> > On Fri, 2009-05-01 at 00:48 +0100, Matthew Garrett wrote:
> > > The problem with the desktop is that it's obvious, looks simple and 
> > > everyone has an opinion on it. But not all of these opinions are equally 
> > > valid. This kind of situation is much easier to deal with in, say, the 
> > > kernel VM system - in that case it would be perfectly acceptable for 
> > > people who spend their entire working lives concentrating on a specific 
> > > topic to say that they know better than people who occasionally touch 
> > > upon it.
> > 
> > ... And the kernel VM people tend to be able to back up their expertise
> > with hard data. If a patch isn't an improvement in some provable manner,
> > it doesn't get in to the kernel.
> Like everything else, kernel VM performance is a tradeoff. Improvements 
> may benefit certain workloads while impairing others. It's rare for 
> changes to improve things for everybody - so the end result is a 
> judgement call, generally by the people who are assumed to know what 
> they're doing.

No, it is not a judgement call. Hard performance measurements are not

We developers are not sheep, and this is not a closed proprietary
project. We expect our experts to show their work.

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