Re: [PATCH 0/2] Fix 'already_tokenized()' performance problem

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Very nice patch. Simple and clean.

Applied and pushed.


On Tue, Apr 19, 2011 at 11:12 AM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> This series of two trivial patches makes 'already_tokenized()' go away
> from profiles of a kernel build with C=2, shaving about 3-4% off the time
> for me.

I am suppressed that you can get 3-4% from just comparing the stream names.
Last time I try to optimized that nextchar() and nextchar_slow()
because Al complains
the tab character force the slow path, I haven't seen some thing like
1% difference.
So I leave it alone.

Thanks for the patch.

Chris
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