From: "H. Peter Anvin" <hpa@zytor.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Kernel Org Admin <ftpadmin@kernel.org>,
Git Mailing List <git@vger.kernel.org>,
Jakub Narebski <jnareb@gmail.com>
Subject: Re: kernel.org mirroring (Re: [GIT PULL] MMC update)
Date: Thu, 07 Dec 2006 11:16:58 -0800 [thread overview]
Message-ID: <457868AA.2030605@zytor.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0612071052560.3615@woody.osdl.org>
Linus Torvalds wrote:
>
> On Thu, 7 Dec 2006, H. Peter Anvin wrote:
>> That all being said, the lack of intrinsic caching in gitweb continues to be a
>> major problem for us. Under high load, it makes all the problems worse.
>
> I really don't see what gitweb could do that would be somehow better than
> apache doing the caching in front of it.. Is there some apache reason why
> that isn't sufficient (ie limitations on its cache size or timeouts?)
>
What it could do better is it could prevent multiple identical queries
from being launched in parallel. That's the real problem we see; under
high load, Apache times out so the git query never gets into the cache;
but in the meantime, the common queries might easily have been launched
20 times in parallel. Unfortunately, the most common queries are also
extremely expensive.
next prev parent reply other threads:[~2006-12-07 19:17 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <45708A56.3040508@drzeus.cx>
[not found] ` <Pine.LNX.4.64.0612011639240.3695@woody.osdl.org>
[not found] ` <457151A0.8090203@drzeus.cx>
[not found] ` <Pine.LNX.4.64.0612020835110.3476@woody.osdl.org>
[not found] ` <45744FA3.7020908@zytor.com>
[not found] ` <Pine.LNX.4.64.0612061847190.3615@woody.osdl.org>
[not found] ` <45778AA3.7080709@zytor.com>
[not found] ` <Pine.LNX.4.64.0612061940170.3615@woody.osdl.org>
[not found] ` <4577A84C.3010601@zytor.com>
[not found] ` <Pine.LNX.4.64.0612070953290.3615@woody.osdl.org>
[not found] ` <45785697.1060001@zytor.com>
2006-12-07 19:05 ` kernel.org mirroring (Re: [GIT PULL] MMC update) Linus Torvalds
2006-12-07 19:16 ` H. Peter Anvin [this message]
2006-12-07 19:30 ` Olivier Galibert
2006-12-07 19:57 ` H. Peter Anvin
2006-12-07 23:50 ` Olivier Galibert
2006-12-07 23:56 ` H. Peter Anvin
2006-12-08 11:25 ` Jakub Narebski
2006-12-08 12:57 ` Rogan Dawes
2006-12-08 13:38 ` Jakub Narebski
2006-12-08 14:31 ` Rogan Dawes
2006-12-08 15:38 ` Jonas Fonseca
2006-12-09 1:28 ` Martin Langhoff
2006-12-09 2:03 ` H. Peter Anvin
2006-12-09 2:52 ` Martin Langhoff
2006-12-09 5:09 ` H. Peter Anvin
2006-12-09 5:34 ` Martin Langhoff
2006-12-09 16:26 ` H. Peter Anvin
2006-12-08 16:16 ` H. Peter Anvin
2006-12-08 16:35 ` Linus Torvalds
2006-12-08 16:42 ` H. Peter Anvin
2006-12-08 19:49 ` Lars Hjemli
2006-12-08 19:51 ` H. Peter Anvin
2006-12-08 19:59 ` Lars Hjemli
2006-12-08 20:02 ` H. Peter Anvin
2006-12-10 9:43 ` rda
2006-12-08 16:54 ` Jeff Garzik
2006-12-08 17:04 ` H. Peter Anvin
2006-12-08 17:40 ` Jeff Garzik
2006-12-08 23:27 ` Linus Torvalds
2006-12-08 23:46 ` Michael K. Edwards
2006-12-08 23:49 ` H. Peter Anvin
2006-12-09 0:18 ` Michael K. Edwards
2006-12-09 0:23 ` H. Peter Anvin
2006-12-09 0:49 ` Linus Torvalds
2006-12-09 0:51 ` H. Peter Anvin
2006-12-09 4:36 ` Michael K. Edwards
2006-12-09 9:27 ` Jeff Garzik
[not found] ` <4579FABC.5070509@garzik.org>
2006-12-09 0:45 ` Linus Torvalds
2006-12-09 0:47 ` H. Peter Anvin
2006-12-09 9:16 ` Jeff Garzik
2006-12-09 1:56 ` Martin Langhoff
2006-12-09 11:51 ` Jakub Narebski
2006-12-09 12:42 ` Jeff Garzik
2006-12-09 13:37 ` Jakub Narebski
2006-12-09 14:43 ` Jeff Garzik
2006-12-09 17:02 ` Jakub Narebski
2006-12-09 17:27 ` Jeff Garzik
2006-12-10 4:07 ` Martin Langhoff
2006-12-10 10:09 ` Jakub Narebski
2006-12-10 12:41 ` Jeff Garzik
2006-12-10 13:02 ` Jakub Narebski
2006-12-10 13:45 ` Jeff Garzik
2006-12-10 19:11 ` Jakub Narebski
2006-12-10 19:50 ` Linus Torvalds
2006-12-10 20:27 ` Jakub Narebski
2006-12-10 20:30 ` Linus Torvalds
2006-12-10 22:01 ` Martin Langhoff
2006-12-10 22:14 ` Jeff Garzik
2006-12-10 22:08 ` Jeff Garzik
2006-12-10 21:01 ` H. Peter Anvin
2006-12-10 22:05 ` Jeff Garzik
2006-12-10 22:59 ` Jakub Narebski
2006-12-11 2:16 ` Martin Langhoff
2006-12-11 8:59 ` Jakub Narebski
2006-12-11 10:18 ` Martin Langhoff
2006-12-09 18:04 ` Linus Torvalds
2006-12-09 18:30 ` H. Peter Anvin
2006-12-10 3:55 ` Martin Langhoff
2006-12-10 7:05 ` H. Peter Anvin
2006-12-12 21:19 ` Jakub Narebski
2006-12-09 7:56 ` Steven Grimm
2006-12-07 19:30 ` Linus Torvalds
2006-12-07 19:39 ` Shawn Pearce
2006-12-07 19:58 ` Linus Torvalds
2006-12-07 23:33 ` Michael K. Edwards
2006-12-07 19:58 ` H. Peter Anvin
2006-12-07 20:05 ` Junio C Hamano
2006-12-07 20:09 ` H. Peter Anvin
2006-12-07 22:11 ` Junio C Hamano
2006-12-08 9:43 ` Jakub Narebski
2006-12-11 3:40 linux
2006-12-11 9:30 ` Jakub Narebski
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