Re: [ANNOUNCE] Cogito-0.12

From: Petr Baudis <pasky@suse.cz>
Date: Jul 7, 2005, 14:45 UTC
Message-ID: <20050707144501.GG19781@pasky.ji.cz>
In-Reply-To: <42CBC822.30701@didntduck.org>

Dear diary, on Wed, Jul 06, 2005 at 02:01:38PM CEST, I got a letter where Brian Gerst <bgerst@didntduck.org> told me that...

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> Petr Baudis wrote:
> >  Also, I've deprecated rsync, as I explained in another mail. Use
> >cg-branch-chg to change the branch URLs to some more sensible scheme -
> >most likely HTTP, or SSH if you want to push as well.
> 
> I really question removing rsync before HTTP pulls become more 
> effecient.

It won't happen. Or rather, I hope the HTTP pulls become more efficient soon. Actually, perhaps Linus has something done already, my workstation is a bit derailed now so I couldn't pull from him in the last few days (hopefully will sort that out today).

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> I did a complete pull of cogito from kernel.org, and http 
> took over 50 minutes to pull everything, while rsync was done in just 
> over 1 minute.  I dared not even try to pull the full kernel at that speed.
> 
> I suspect that part of the problem is that the pull methods are doing a 
> depth first search, so we can't request the next object until the 
> current object is fully received and parsed.  Changing to a breadth 
> first search would allow multiple requests in flight and asynchronous 
> processing which should speed things up.  I am exploring using the 
> curl_multi_* functions to do this, but this will require changes to 
> common code in pull.c.

Hmm, yes, I guess Linus won't be touching the HTTP backend at all. ;-) I suggest you to check the last development in Linus' branch and sync with Daniel Barkalow, who promised improving the pull tools as well.

-- 
				Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
<Espy> be careful, some twit might quote you out of context..