Re: [RFC] Cache negative delta pairs

On Thu, 29 Jun 2006, Jeff King wrote:

On Thu, Jun 29, 2006 at 12:39:31PM -0400, Nicolas Pitre wrote:

quoted

You do that lookup for every delta match attempt.  Instead it could be 
done once for the whole window attempt, potentially reducing the cache 
size by a factor of 20, and it might be faster too.

I'm not convinced this will provide good cache hit characteristics, and
I'm not convinced it's semantically correct (see my other mail).

Dare to test it?  I provided you with most of the code difference 
already.

And what do you mean by "semantically correct"?


Nicolas