From: Theodore Tso <tytso@mit.edu>
To: git@vger.kernel.org
Subject: Re: Unresolved issues #2 (shallow clone again)
Date: Sun, 7 May 2006 20:33:38 -0400 [thread overview]
Message-ID: <20060508003338.GB17138@thunk.org> (raw)
In-Reply-To: <20060507075631.GA24423@coredump.intra.peff.net>
On Sun, May 07, 2006 at 03:56:31AM -0400, Jeff King wrote:
> On Sun, May 07, 2006 at 06:08:03PM +1200, Martin Langhoff wrote:
>
> > >> And in any case commits and trees are lightweight and compress well...
> > >Commit maybe, but is this based on a hard fact?
> > No hard facts here :( but I think it's reasonable to assume that the
> > trees delta/compress reasonably well, as a given commit will change
> > just a few entries in each tree.
>
> A few hard facts (using Linus' linux-2.6 tree):
> - original packsize: 120996 kilobytes
> - unpacked: 233338 objects, 1417476 kilobytes
> This is an 11.7:1 compression ratio (of course, much of this is
> wasted space from the 4k block size in the filesystem)
If there are 233338 objects, then the average wasted space due to
internal fragmentation is 233338 * 2k, or 466676 kilobytes, or only
36% of the wasted space. Most of the savings is probably coming from
the compression and delta packing.
- Ted
next prev parent reply other threads:[~2006-05-08 0:33 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-14 9:31 Recent unresolved issues Junio C Hamano
2006-04-14 16:02 ` Petr Baudis
[not found] ` <20060414151030.11c64730.seanlkml@sympatico.ca>
2006-04-14 19:10 ` sean
2006-04-14 19:24 ` Petr Baudis
2006-04-14 22:56 ` Recent unresolved issues: shallow clone Carl Worth
2006-04-15 0:17 ` Johannes Schindelin
2006-04-15 0:25 ` Junio C Hamano
2006-04-15 2:11 ` Junio C Hamano
2006-04-14 23:52 ` Recent unresolved issues Linus Torvalds
2006-04-15 0:19 ` Linus Torvalds
2006-04-15 0:39 ` Linus Torvalds
2006-04-15 0:38 ` Junio C Hamano
2006-04-15 0:49 ` Linus Torvalds
2006-04-15 0:56 ` Linus Torvalds
2006-04-15 1:09 ` Linus Torvalds
2006-04-15 2:22 ` Junio C Hamano
2006-04-15 6:18 ` Junio C Hamano
2006-04-15 8:57 ` Junio C Hamano
2006-04-15 11:46 ` Johannes Schindelin
2006-04-15 16:59 ` Linus Torvalds
2006-04-15 17:17 ` Linus Torvalds
2006-04-16 8:14 ` Junio C Hamano
2006-04-15 1:35 ` Junio C Hamano
2006-04-15 4:09 ` Linus Torvalds
2006-04-15 5:06 ` Junio C Hamano
2006-05-04 8:15 ` Unresolved issues #2 Junio C Hamano
2006-05-04 8:32 ` Jakub Narebski
2006-05-04 9:14 ` Junio C Hamano
2006-05-04 9:26 ` Jakub Narebski
2006-05-04 9:58 ` Petr Baudis
2006-05-04 15:45 ` Pavel Roskin
2006-05-04 17:01 ` Unresolved issues #2 (shallow clone again) Carl Worth
2006-05-05 0:25 ` Junio C Hamano
2006-05-05 5:17 ` Martin Langhoff
2006-05-05 5:23 ` Carl Worth
2006-05-05 5:48 ` Jakub Narebski
2006-05-05 15:10 ` Linus Torvalds
2006-05-05 15:18 ` Jakub Narebski
2006-05-05 15:59 ` Linus Torvalds
2006-05-06 6:23 ` Martin Langhoff
2006-05-06 7:10 ` Junio C Hamano
2006-05-07 6:08 ` Martin Langhoff
2006-05-07 7:56 ` Jeff King
2006-05-07 15:27 ` Linus Torvalds
2006-05-08 4:24 ` Jeff King
2006-05-08 15:32 ` Linus Torvalds
2006-05-08 0:33 ` Theodore Tso [this message]
2006-05-08 0:50 ` Linus Torvalds
2006-05-08 1:26 ` Theodore Tso
2006-05-08 2:04 ` Linus Torvalds
2006-05-08 2:24 ` Theodore Tso
2006-05-08 2:42 ` Linus Torvalds
2006-05-07 8:01 ` Sergey Vlasov
2006-05-07 23:27 ` Martin Langhoff
2006-05-07 23:35 ` Junio C Hamano
2006-05-07 23:44 ` Martin Langhoff
2006-05-05 15:31 ` Carl Worth
2006-05-07 13:30 ` Jakub Narebski
2006-05-08 2:54 ` Junio C Hamano
2006-05-08 4:02 ` Jakub Narebski
2006-05-08 4:24 ` Jakub Narebski
2006-05-04 20:41 ` Unresolved issues #2 Daniel Barkalow
2006-05-04 21:33 ` Linus Torvalds
2006-05-06 5:58 ` Junio C Hamano
2006-05-06 15:26 ` Linus Torvalds
[not found] ` <20060506113549.48e553d1.seanlkml@sympatico.ca>
2006-05-06 15:35 ` sean
2006-05-06 16:30 ` Linus Torvalds
[not found] ` <20060506125323.544c35db.seanlkml@sympatico.ca>
2006-05-06 16:53 ` sean
2006-05-06 17:20 ` Linus Torvalds
2006-05-06 21:16 ` Junio C Hamano
2006-05-06 21:33 ` Johannes Schindelin
2006-05-06 21:51 ` Linus Torvalds
2006-05-07 9:39 ` Junio C Hamano
2006-05-07 9:42 ` Junio C Hamano
2006-05-07 11:31 ` Johannes Schindelin
2006-05-07 11:38 ` Jakub Narebski
2006-05-08 2:51 ` Junio C Hamano
2006-05-07 0:41 ` Jakub Narebski
2006-05-09 11:40 ` David Woodhouse
2006-05-09 11:53 ` Bertrand Jacquin
2006-05-09 13:09 ` Nicolas Pitre
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