On 9/6/07, Jon Smirl <jonsmirl@gmail.com> wrote:
quoted text
> Use blame for an example. Blame has to crawl every commit to see if it

Sure. Build a quick dedicated index for that and measure

 - cost (size and commit/fetch costs)
 - benefit
 - frequency of usage

git is a special-purpouse DB that does great for certain access
patterns. Have a look at monotone for a design that looks a lot like
git but is backed by a general purpouse DB and does equally poorly for
all access patterns ;-)

quoted text
> It keeps doing this until it figures out the last
> author for every line in the file. Worse case blame has to crawl every
> commit in the data store.

Yep. Can we get a minimal-cost index with just enough hints that can
speed up blame, and perhaps git log with/very/deep/path? Probably!

That's worth pursuing sure.


martin
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