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Re: Making blame even faster

From: Vincent Lefevre <vincent+svn_at_vinc17.org>
Date: 2005-02-14 03:53:50 CET

On 2005-02-13 15:17:52 -0500, Daniel Berlin wrote:
> Brane's timings on windows showed that for the gcc combine.c file
> (which had ~1500 revisions, spread out across branches, etc), we had
> blame on an bdb repo with vdelta: 40 seconds
> blame on an bdb repo with xdelta: 10 seconds
> blame on an fsfs repo with vdelta: 108 seconds
> blame on an fsfs repo with xdelta: 105 seconds
> With that change in place, you will get numbers roughly the same on
> fsfs and bdb.

That is, with the example above, ~ 10 seconds?

> I can provide a patch that makes the first delta against empty a
> fulltext in fsfs as a temporary solution if you really need a fast
> blame and can't wait for Greg Hudson's solution to be implemented
> and tested.

I'm using Debian packages, so I'll wait...

Vincent Lefèvre <vincent_at_vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / SPACES project at LORIA
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Received on Mon Feb 14 03:54:56 2005

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