Re: Cloning speed comparison

From: Junio C Hamano <junkio@cox.net>
Date: Aug 15, 2005, 20:46 UTC
Message-ID: <7vacjjx70u.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <Pine.LNX.4.63.0508151321270.12816@iabervon.org>

Daniel Barkalow <barkalow@iabervon.org> writes:

> I should be able to get http-pull down to the neighborhood of 
> (current) ssh-pull; http-pull is that slow (when the source repository 
> isn't packed) because it's entirely sequential, rather than overlapping 
> requests like ssh-pull now does.

I like those prefetch() and process() code in pull.c very much.

I have been wondering if increasing parallelism more by prefetching beyond the immediate parents of the current commit, in "if (get_history)" part of process_commit(). Maybe it is not worth it because doing a commit, its associated tree(s) and its parents would already give us enough parallelism already.

> (I've written an untested patch for local-pull, which I'll be testing, 
> cleaning, and submitting tonight, assuming my newly-arrived monitor 
> actually works)

That is a great news. Thank you for doing this; looking forward to see it, but no rush. Enjoy your new monitor.