From: Nicolas Pitre <nico@cam.org>
To: Jeff Garzik <jeff@garzik.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Davide Libenzi <davidel@xmailserver.org>,
Git Mailing List <git@vger.kernel.org>,
mpm@selenic.com, bcrl@kvack.org
Subject: Re: cleaner/better zlib sources?
Date: Fri, 16 Mar 2007 13:12:46 -0400 (EDT) [thread overview]
Message-ID: <alpine.LFD.0.83.0703161308070.18328@xanadu.home> (raw)
In-Reply-To: <45FAC75B.3030902@garzik.org>
On Fri, 16 Mar 2007, Jeff Garzik wrote:
> Although it sounds like zlib could indeed be optimized to reduce its startup
> and shutdown overhead, I wonder if switching compression algorithms to a pure
> Huffman or even RLE compression (with associated lower startup/shutdown costs)
> would perform better in the face of all those small objects.
>
> And another random thought, though it may be useless in this thread: I bet
> using a pre-built (compiled into git) static zlib dictionary for git commit
> and tree objects might improve things a bit.
See my last post. We'll do even better with special object
encoding altogether. Those representations are so dense that
compression provides no gain at all making the point moot.
Nicolas
next prev parent reply other threads:[~2007-03-16 17:12 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-16 1:04 cleaner/better zlib sources? Linus Torvalds
2007-03-16 1:10 ` Shawn O. Pearce
2007-03-16 1:11 ` Jeff Garzik
2007-03-16 1:14 ` Matt Mackall
2007-03-16 1:46 ` Linus Torvalds
2007-03-16 1:54 ` Linus Torvalds
2007-03-16 2:43 ` Davide Libenzi
2007-03-16 2:56 ` Linus Torvalds
2007-03-16 3:16 ` Davide Libenzi
2007-03-16 16:21 ` Linus Torvalds
2007-03-16 16:24 ` Davide Libenzi
2007-03-16 16:35 ` Linus Torvalds
2007-03-16 19:21 ` Davide Libenzi
2007-03-17 0:01 ` Linus Torvalds
2007-03-17 1:11 ` Linus Torvalds
2007-03-17 3:28 ` Nicolas Pitre
2007-03-17 5:19 ` Shawn O. Pearce
2007-03-17 17:55 ` Linus Torvalds
2007-03-17 19:40 ` Linus Torvalds
2007-03-17 19:42 ` [PATCH 1/2] Make trivial wrapper functions around delta base generation and freeing Linus Torvalds
2007-03-17 19:44 ` [PATCH 2/2] Implement a simple delta_base cache Linus Torvalds
2007-03-17 21:45 ` Linus Torvalds
2007-03-17 22:37 ` Junio C Hamano
2007-03-17 23:09 ` Linus Torvalds
2007-03-17 23:54 ` Linus Torvalds
2007-03-18 1:13 ` Nicolas Pitre
2007-03-18 7:47 ` Junio C Hamano
2007-03-17 23:12 ` Junio C Hamano
2007-03-17 23:24 ` Linus Torvalds
2007-03-17 23:52 ` Jon Smirl
2007-03-18 1:14 ` Morten Welinder
2007-03-18 1:29 ` Linus Torvalds
2007-03-18 1:38 ` Nicolas Pitre
2007-03-18 1:55 ` Linus Torvalds
2007-03-18 2:03 ` Nicolas Pitre
2007-03-18 2:20 ` Linus Torvalds
2007-03-18 3:00 ` Nicolas Pitre
2007-03-18 3:31 ` Linus Torvalds
2007-03-18 5:30 ` Julian Phillips
2007-03-18 17:23 ` Linus Torvalds
2007-03-18 10:53 ` Robin Rosenberg
2007-03-18 17:34 ` Linus Torvalds
2007-03-18 18:29 ` Robin Rosenberg
2007-03-18 21:25 ` Shawn O. Pearce
2007-03-19 13:16 ` David Brodsky
2007-03-20 6:35 ` Robin Rosenberg
2007-03-20 9:13 ` David Brodsky
2007-03-21 2:37 ` Linus Torvalds
2007-03-21 2:54 ` Nicolas Pitre
2007-03-18 3:06 ` [PATCH 3/2] Avoid unnecessary strlen() calls Linus Torvalds
2007-03-18 9:45 ` Junio C Hamano
2007-03-18 15:54 ` Linus Torvalds
2007-03-18 15:57 ` Linus Torvalds
2007-03-18 21:38 ` Shawn O. Pearce
2007-03-18 21:48 ` Linus Torvalds
2007-03-20 3:05 ` Johannes Schindelin
2007-03-20 3:29 ` Shawn O. Pearce
2007-03-20 3:40 ` Shawn O. Pearce
2007-03-20 4:11 ` Linus Torvalds
2007-03-20 4:18 ` Shawn O. Pearce
2007-03-20 4:45 ` Linus Torvalds
2007-03-20 5:44 ` Junio C Hamano
2007-03-20 3:16 ` Junio C Hamano
2007-03-20 4:31 ` Linus Torvalds
2007-03-20 4:39 ` Shawn O. Pearce
2007-03-20 4:57 ` Linus Torvalds
2007-03-18 1:44 ` [PATCH 2/2] Implement a simple delta_base cache Linus Torvalds
2007-03-18 6:28 ` Avi Kivity
2007-03-17 22:44 ` Linus Torvalds
2007-03-16 16:35 ` cleaner/better zlib sources? Jeff Garzik
2007-03-16 16:42 ` Matt Mackall
2007-03-16 16:51 ` Linus Torvalds
2007-03-16 17:12 ` Nicolas Pitre [this message]
2007-03-16 23:22 ` Shawn O. Pearce
2007-03-16 17:06 ` Nicolas Pitre
2007-03-16 17:51 ` Linus Torvalds
2007-03-16 18:09 ` Nicolas Pitre
2007-03-16 1:33 ` Davide Libenzi
2007-03-16 2:06 ` Davide Libenzi
-- strict thread matches above, loose matches on Subject: below --
2007-03-16 6:08 linux
2007-03-16 11:34 ` Florian Weimer
2007-03-16 15:51 ` Josef Weidendorfer
2007-03-16 16:11 ` Linus Torvalds
2007-03-16 17:39 ` linux
2007-03-16 22:45 ` Josef Weidendorfer
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