From: Linus Torvalds <torvalds@osdl.org>
Date: Mon, 16 Oct 2006 16:57:25 GMT
Subject: Re: git-diff-tree inordinately (O(M*N)) slow on files with many changes
Message-ID: <Pine.LNX.4.64.0610160956360.3962@g5.osdl.org>
In-Reply-To: <Pine.LNX.4.64.0610160932100.7697@alien.or.mcafeemobile.com>



On Mon, 16 Oct 2006, Davide Libenzi wrote:
>
> I think the xdl_hashbits() picks up the hash table size "almost" 
> correctly. I think we're looking at some bad hash *collisions* (not 
> records with same hash value, that'd be stopped by the mlim check). 
> Send me the files and I'll take a look ...

Davide, they were mentioned in the original report:

	http://meyering.net/code/git-perf/configure.gz
	http://meyering.net/code/git-perf/configure-curr.gz

I'd take a look myself, but I need to run..

		Linus