mirrors/jgit - jgit - source @ dussan.org

Shawn O. Pearce 3f66e65e71 Remember loose objects and fast-track their lookup Recently created objects are usually what branches point to, and are usually written out as loose objects. But due to the high cost of asking the operating system if a file exists, these are the last thing that ObjectDirectory examines when looking for an object by its ObjectId. Caching recently seen loose objects permits the opening code to jump directly to the loose object, accelerating lookup for branch heads that are accessed often. To avoid exploding the cache its limited to approximately 2048 entries. When more ids are added, the table is simply cleared and reset in size. Change-Id: I18f483217412b102f754ffd496c87061d592e535 Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	13 years ago
..
file	Remember loose objects and fast-track their lookup	13 years ago
pack	Fix checkReferencedIsReachable to use correct base list	13 years ago

Shawn O. Pearce 3f66e65e71 Remember loose objects and fast-track their lookup

Recently created objects are usually what branches point to, and
are usually written out as loose objects.  But due to the high cost
of asking the operating system if a file exists, these are the last
thing that ObjectDirectory examines when looking for an object by
its ObjectId.

Caching recently seen loose objects permits the opening code to
jump directly to the loose object, accelerating lookup for branch
heads that are accessed often.

To avoid exploding the cache its limited to approximately 2048
entries.  When more ids are added, the table is simply cleared
and reset in size.

Change-Id: I18f483217412b102f754ffd496c87061d592e535
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

13 years ago

file

Remember loose objects and fast-track their lookup

13 years ago

pack

Fix checkReferencedIsReachable to use correct base list

13 years ago