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From: "Adam J. Richter" <adam@yggdrasil.com>
To: pasky@ucw.cz
Cc: git@vger.kernel.org, jgarzik@pobox.com,
	linux-kernel@vger.kernel.org, mercurial@selenic.com,
	mpm@selenic.com, torvalds@osdl.org
Subject: Re: Mercurial 0.4e vs git network pull
Date: Sun, 15 May 2005 04:52:50 -0700	[thread overview]
Message-ID: <200505151152.j4FBqoW01239@adam.yggdrasil.com> (raw)

On Sun, 15 May 2005 14:40:42 +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
>	...

>(and same for the trees).

	Don't you usually have a list of many files for which you
want to retrieve this information?  I'd imagine that would usually
suffice to fill the pipeline.

                    __     ______________
Adam J. Richter        \ /
adam@yggdrasil.com      | g g d r a s i l

             reply	other threads:[~2005-05-15 13:03 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-15 11:52 Adam J. Richter [this message]
2005-05-15 14:23 ` Mercurial 0.4e vs git network pull Petr Baudis
  -- strict thread matches above, loose matches on Subject: below --
2005-05-15 11:22 Adam J. Richter
2005-05-15 12:40 ` Petr Baudis
2005-05-16 22:22   ` Tristan Wibberley
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
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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