From: Tristan Wibberley <maihem@maihem.org>
To: git@vger.kernel.org
Subject: Re: Mercurial 0.4e vs git network pull
Date: Mon, 16 May 2005 23:22:11 +0100 [thread overview]
Message-ID: <1116282131.6141.8.camel__31554.9111379825$1116283578$gmane$org@localhost.localdomain> (raw)
In-Reply-To: <20050515124042.GE13024@pasky.ji.cz>
On Sun, 2005-05-15 at 14:40 +0200, Petr Baudis wrote:
> Dear diary, on Sun, May 15, 2005 at 01:22:19PM CEST, I got a letter
> where "Adam J. Richter" <adam@yggdrasil.com> told me that...
> >
> > I don't understand what was wrong with Jeff Garzik's previous
> > suggestion of using http/1.1 pipelining to coalesce the round trips.
> > If you're worried about queuing too many http/1.1 requests, the client
> > could adopt a policy of not having more than a certain number of
> > requests outstanding or perhaps even making a new http connection
> > after a certain number of requests to avoid starving other clients
> > when the number of clients doing one of these transfers exceeds the
> > number of threads that the http server uses.
>
> The problem is that to fetch a revision tree, you have to
>
> send request for commit A
> receive commit A
> look at commit A for list of its parents
> send request for the parents
> receive the parents
> look inside for list of its parents
> ...
What about IMAP? You could ask for just the parents for several messages
(via a message header), then start asking for message bodies (with the
juicy stuff in). You could also ask for a list of the new commits then
ask for each of the bodies (several at a time). Not as good as a "Just
give me all new data", but an *awful* lot more efficient than HTTP. And
very flexible. You just need to map changesets to IMAP messages (if such
a mapping can actually make sense :)
Prolly a bit more work though.
--
Tristan Wibberley
The opinions expressed in this message are my own opinions and not those
of my employer.
next prev parent reply other threads:[~2005-05-16 22:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-15 11:22 Mercurial 0.4e vs git network pull Adam J. Richter
2005-05-15 12:40 ` Petr Baudis
2005-05-16 22:22 ` Tristan Wibberley [this message]
2005-05-15 17:39 ` Matt Mackall
2005-05-15 18:23 ` Jeff Garzik
2005-05-16 1:12 ` Matt Mackall
2005-05-16 9:29 ` Matthias Urlichs
-- strict thread matches above, loose matches on Subject: below --
2005-05-15 11:52 Adam J. Richter
2005-05-15 14:23 ` Petr Baudis
2005-05-12 9:44 Matt Mackall
2005-05-12 18:23 ` Petr Baudis
2005-05-12 20:11 ` Matt Mackall
2005-05-12 20:14 ` Petr Baudis
2005-05-12 20:57 ` Matt Mackall
2005-05-12 21:24 ` Daniel Barkalow
2005-05-12 22:29 ` Matt Mackall
2005-05-13 0:33 ` Daniel Barkalow
2005-05-13 1:11 ` Matt Mackall
2005-05-13 2:23 ` Daniel Barkalow
2005-05-13 2:44 ` Matt Mackall
2005-05-13 5:44 ` Petr Baudis
2005-05-15 8:54 ` Petr Baudis
2005-05-15 6:22 ` Ingo Molnar
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