Re: [PATCH -mm 4/7] mm: make page colouring code generic

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On Thu, 21 Jun 2012 10:30:26 -0400 Rik van Riel <riel@xxxxxxxxxx> wrote:

> On 06/21/2012 07:20 AM, Peter Zijlstra wrote:
> > On Mon, 2012-06-18 at 18:05 -0400, Rik van Riel wrote:
> >> Fix the x86-64 page colouring code to take pgoff into account.
> >
> > Shouldn't that be a separate patch?
> 
> My idea was that it would be easier to review
> these two nearly identical functions together.
> 
> Andrew, do you have any strong opinions?

It depends on the significance of the change.  I suspect it's one of
things which speeds up many workloads by 1.5% and slows down a few
weird/important ones by 11%.  Which makes it a thing to be put under
the microscope and poked at.  Some people might end up reverting it,
making it tunable/configurable etc etc.

If any of that is true then yes, I guess it should be a standalone thing.

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