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mostly done with location log precaching

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Some nice wins.
This commit is contained in:
Joey Hess 2020-07-13 17:04:02 -04:00
parent df58609804
commit 75aab72d23
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22 changed files with 217 additions and 68 deletions
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doc/todo/precache_logs_for_speed_with_cat-file_--buffer.mdwn
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@ -25,6 +25,22 @@ and precache them.
> >
> > So, this needs some more work, but is promising.
> > > Second try at this, results:
> > >
> > > * `get` in a full repo is not any slower. And presumably in an
> > > empty repo, `get` is faster, but I didn't try it and the transfers
> > > will dominate that anyway
> > > * `sync --content` 2x speedup!
> > > * `fsck --fast` 1.5x speedup
> > > * `whereis` 1.5x speedup
> > >
> > > Still todo:
> > >
> > > * move, copy, drop, and mirror were left not using the location log caching yet
> > > * get is left with an unncessary inAnnex check so could be sped up
> > > a little bit more
> > >
Another thing that the same cat-file --buffer approach could be used with
is to cat the annex links. Git.LsFiles.inRepoDetails provides the Sha
of file contents, which can be fed through cat-file --buffer to get keys.