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From: Linus Torvalds <torvalds@osdl.org>
To: Martin Langhoff <martin.langhoff@gmail.com>
Cc: Jon Smirl <jonsmirl@gmail.com>, git <git@vger.kernel.org>
Subject: Re: Figured out how to get Mozilla into git
Date: Fri, 9 Jun 2006 21:11:58 -0700 (PDT)	[thread overview]
Message-ID: <Pine.LNX.4.64.0606092109380.5498@g5.osdl.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0606092043460.5498@g5.osdl.org>



On Fri, 9 Jun 2006, Linus Torvalds wrote:
> 
> You can try to approximate the latency by just looking at the number of 
> packets, and using a large MTU (and on localhost, the MTU will be pretty 
> large - roughly 16kB. Don't count packet size at all, just count how many 
> packets each protocol sends (both ways), ignoring packets that are just 
> empty ACK's.

Btw, the reason you should ignore empty acks is that they happen when you 
have a nice streaming one-way thing, because the TCP rules say that you 
should send an ACK every two full packets minimum, even if you have 
nothing to say.

So empty acks really approximate to "streaming data", while packets with 
payload _could_ obviously mean "nice streaming data going both ways", but 
almost always end up being synchronization discussion of some sort.

		Linus

  reply	other threads:[~2006-06-10  4:12 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-09  2:17 Figured out how to get Mozilla into git Jon Smirl
2006-06-09  2:56 ` Nicolas Pitre
2006-06-09  3:06 ` Martin Langhoff
2006-06-09  3:28   ` Jon Smirl
2006-06-09  7:17     ` Jakub Narebski
2006-06-09 15:01       ` Linus Torvalds
2006-06-09 16:11         ` Nicolas Pitre
2006-06-09 16:30           ` Linus Torvalds
2006-06-09 17:38             ` Nicolas Pitre
2006-06-09 17:49               ` Linus Torvalds
2006-06-09 17:10           ` Jakub Narebski
2006-06-09 18:13   ` Jon Smirl
2006-06-09 19:00     ` Linus Torvalds
2006-06-09 20:17       ` Jon Smirl
2006-06-09 20:40         ` Linus Torvalds
2006-06-09 20:56           ` Jon Smirl
2006-06-09 21:57             ` Linus Torvalds
2006-06-09 22:17               ` Linus Torvalds
2006-06-09 23:16               ` Greg KH
2006-06-09 23:37               ` Martin Langhoff
2006-06-09 23:43                 ` Linus Torvalds
2006-06-10  0:00                   ` Jon Smirl
2006-06-10  0:11                     ` Linus Torvalds
2006-06-10  0:16                       ` Jon Smirl
2006-06-10  0:45                         ` Jon Smirl
2006-06-09 20:44         ` Jakub Narebski
2006-06-09 21:05         ` Nicolas Pitre
2006-06-09 21:46           ` Jon Smirl
2006-06-10  1:23         ` Martin Langhoff
2006-06-10  1:14   ` Martin Langhoff
2006-06-10  1:33     ` Linus Torvalds
2006-06-10  1:43       ` Linus Torvalds
2006-06-10  1:48         ` Jon Smirl
2006-06-10  1:59           ` Linus Torvalds
2006-06-10  2:21             ` Jon Smirl
2006-06-10  2:34               ` Carl Worth
2006-06-10  3:08                 ` Linus Torvalds
2006-06-10  8:21                   ` Jakub Narebski
2006-06-10  9:00                     ` Junio C Hamano
2006-06-10  8:36                   ` Rogan Dawes
2006-06-10  9:08                     ` Junio C Hamano
2006-06-10 14:47                       ` Rogan Dawes
2006-06-10 14:58                         ` Jakub Narebski
2006-06-10 15:14                         ` Nicolas Pitre
2006-06-10 17:53                     ` Linus Torvalds
2006-06-10 18:02                       ` Jon Smirl
2006-06-10 18:36                       ` Rogan Dawes
2006-06-10  3:01               ` Linus Torvalds
2006-06-10  2:30             ` Jon Smirl
2006-06-10  3:41             ` Martin Langhoff
2006-06-10  3:55               ` Junio C Hamano
2006-06-10  4:02               ` Linus Torvalds
2006-06-10  4:11                 ` Linus Torvalds [this message]
2006-06-10  6:02                   ` Jon Smirl
2006-06-10  6:15                     ` Junio C Hamano
2006-06-10 15:44                       ` Jon Smirl
2006-06-10 16:15                         ` Timo Hirvonen
2006-06-10 18:37                         ` Petr Baudis
2006-06-10 18:55                         ` Lars Johannsen
2006-06-11 22:00       ` Nicolas Pitre
2006-06-18 19:26         ` Linus Torvalds
2006-06-18 21:40           ` Martin Langhoff
2006-06-18 22:36             ` Linus Torvalds
2006-06-18 22:51               ` Broken PPC sha1.. (Re: Figured out how to get Mozilla into git) Linus Torvalds
2006-06-18 23:25                 ` [PATCH] Fix PPC SHA1 routine for large input buffers Paul Mackerras
2006-06-19  5:02                   ` Linus Torvalds
2006-06-09  3:12 ` Figured out how to get Mozilla into git Pavel Roskin

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