Thread (10 messages) flat view 10 messages, 6 authors, 2016-06-15

Re: packs and trees

From: Linus Torvalds <torvalds@osdl.org>
Date: 2016-06-15 22:42:30


On Wed, 21 Jun 2006, Martin Langhoff wrote:
If you are asking about the ext3 performance problems, I think Linus
discussed that a while ago, why unpacked repos are slow (in addition
to huge), and there were some suggestions of using hashed directory
indexes.
Yes. I think most distros still default to nonhashed directories, but for 
any large-directory case you really want to turn on hashing. 

I forget the exact details, it's somethng like

	tune2fs -O dir_index

or something to turn it on (if I remember correctly, that will only affect 
any directories then created after that, but you can effect that by just 
doing a "git repack -a -d" which will remove all old object directories, 
and now subsequent directories will be done with indexing on).

Personally, I just ended up using packs extensively, so I think I'm still 
running without indexing on all my machines ;)

		Linus
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