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plumbing: format/packfile, performance optimizations for reading large commit histories #963

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merged 12 commits into from
Nov 28, 2018
Merged

plumbing: format/packfile, performance optimizations for reading large commit histories #963

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640029c
Avoid unnecessary seek calls that are determining offsets that are al…
filipnavara Sep 23, 2018
a78415e
Fix bufferedSeeker.Seek for SeekCurrent and non-zero offset.
filipnavara Sep 23, 2018
b606141
Add loose object cache.
filipnavara Sep 23, 2018
25d2f13
Search packfile indexes first if we already loaded them.
filipnavara Sep 23, 2018
4a21431
Improve performace for reading many small objects from packfile by le…
filipnavara Sep 23, 2018
72e361d
Fix infinite recursion in FSObject.
filipnavara Sep 24, 2018
5e5b9b3
Remove a cachePut that was adding FSObject to cache, which triggered …
filipnavara Sep 24, 2018
3437532
Combine deltaBaseCache and simpleObjectCache into one objectCache.
filipnavara Sep 24, 2018
344fc95
Add smallObjectThreshold constant instead of magic number.
filipnavara Sep 26, 2018
dd7c3e2
Add simple tests for SeekObjectHeader.
filipnavara Sep 26, 2018
4cb21e2
Fix build after rebase.
filipnavara Nov 26, 2018
3c36f7a
Do not treat delta references as small objects that can be eagerly lo…
filipnavara Nov 26, 2018
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Improve performace for reading many small objects from packfile by le… 
…tting the I/O buffers be used better.

Signed-off-by: Filip Navara <[email protected]>
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filipnavara committed Nov 26, 2018
commit 4a21431163cb42f605d35884f674304245e99370
2 changes: 1 addition & 1 deletion plumbing/format/packfile/packfile.go
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Original file line number Diff line number Diff line change
Expand Up @@ -180,7 +180,7 @@ func (p *Packfile) objectAtOffset(offset int64) (plumbing.EncodedObject, error)

// If we have no filesystem, we will return a MemoryObject instead
// of an FSObject.
if p.fs == nil {
if p.fs == nil || h.Length <= 16 * 1024 {
return p.getNextObject(h)
}

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