Improve performace for reading many small objects from packfile by letting the I/O buffers be used better.

filipnavara · filipnavara · commit cb4fbe0d8cd1 · 2018-09-23T18:45:08.000+02:00
diff --git a/plumbing/format/packfile/packfile.go b/plumbing/format/packfile/packfile.go
@@ -208,7 +208,7 @@ 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)
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -208,7 +208,7 @@ func (p *Packfile) objectAtOffset(offset int64) (plumbing.EncodedObject, error)`
`208`	`208`
`209`	`209`	`// If we have no filesystem, we will return a MemoryObject instead`
`210`	`210`	`// of an FSObject.`
`211`		`- if p.fs == nil {`
	`211`	`+ if p.fs == nil \|\| h.Length <= 16 * 1024 {`
`212`	`212`	`return p.getNextObject(h)`
`213`	`213`	`}`
`214`	`214`