Jonathan Nieder wrote:
> Anders Kaseorg wrote:
> > On Fri, 3 Dec 2010, Jonathan Nieder wrote:
>
> >> Instead of looking up the commit to be matched exactly in the commits
> >> hash table, this makes a linear search.
> [...]
> > I donât think itâs ever a problem: in my repository with 1800 tags on a
> > warm cache, that loop accounts for about 0.1% of even the fastest
> > non-exact-match query (a commit right after a tag).
>
> Thanks for checking. Makes sense.
Apart from measuring: for_each_ref *loads* the tags in a linear scan,
so another linear scan doesn't add to the runtime w.r.t. number of
tags. It only hurts if you also describe many refs in one go.
--
Thomas Rast
trast@{inf,student}.ethz.ch
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