Re: [PATCH 2/4] Hash tags by commit SHA1 in git-describe.

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Johannes Schindelin <Johannes.Schindelin@xxxxxx> writes:

> On Sat, 13 Jan 2007, Shawn O. Pearce wrote:
>
>> If a project has a very large number of tags then git-describe
>> will spend a good part of its time looping over the tags testing
>> them one at a time to determine if it matches a given commit.
>
> Why not just use object_refs? This also obviates the need for your patch 
> 3/4, since you no longer have buckets to search binarily. Plus, it uses a 
> hash map, which already turned out to beat (in terms of performance) the 
> hell out of bucketed lists in git history.

Very good point.

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