From: Linus Torvalds <torvalds@linux-foundation.org>
To: "Shawn O. Pearce" <spearce@spearce.org>
Cc: Anton Tropashko <atropashko@yahoo.com>, git@vger.kernel.org
Subject: Re: Errors cloning large repo
Date: Fri, 9 Mar 2007 21:54:17 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0703092145550.10832@woody.linux-foundation.org> (raw)
In-Reply-To: <20070310030718.GA2927@spearce.org>
On Fri, 9 Mar 2007, Shawn O. Pearce wrote:
>
> I'm shocked you were able to repack an 8.5 GiB repository.
Side note - it would be nice to hear just how big the repository *really*
is.
For example, if "du -sh" says 8.5GB, it doesn't necessarily mean that
there really is 8.5GB of data there.
With a normal 4kB blocksize filesystem, and ~150.000 filesystem objects,
you'd have an average of 300MB of just padding (roughly 2kB per file).
Depending on the file statistics, it could be even more.
And if it's compressible, it's entirely possible that even without
much delta compression, it could fit in a pack-file smaller than 4GB. At
which point a 32-bit index file should work fine, just not with a 32-bit
off_t.
So this really could be a situation where just small tweaks makes it work
out for now. We'll need the full 64-bit index eventually for sure, but..
Linus
next prev parent reply other threads:[~2007-03-10 5:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-10 2:37 Errors cloning large repo Anton Tropashko
2007-03-10 3:07 ` Shawn O. Pearce
2007-03-10 5:54 ` Linus Torvalds [this message]
2007-03-10 6:01 ` Shawn O. Pearce
2007-03-10 22:32 ` Martin Waitz
2007-03-10 22:46 ` Linus Torvalds
2007-03-11 21:35 ` Martin Waitz
2007-03-10 10:27 ` Jakub Narebski
2007-03-11 2:00 ` Shawn O. Pearce
2007-03-12 11:09 ` Jakub Narebski
2007-03-12 14:24 ` Shawn O. Pearce
2007-03-17 13:23 ` Jakub Narebski
[not found] ` <82B0999F-73E8-494E-8D66-FEEEDA25FB91@adacore.com>
2007-03-10 22:21 ` Linus Torvalds
2007-03-10 5:10 ` Linus Torvalds
-- strict thread matches above, loose matches on Subject: below --
2007-03-13 0:02 Anton Tropashko
2007-03-12 17:39 Anton Tropashko
2007-03-12 18:40 ` Linus Torvalds
2007-03-10 1:21 Anton Tropashko
2007-03-10 1:45 ` Linus Torvalds
2007-03-09 23:48 Anton Tropashko
2007-03-10 0:54 ` Linus Torvalds
2007-03-10 2:03 ` Linus Torvalds
2007-03-10 2:12 ` Junio C Hamano
2007-03-09 19:20 Anton Tropashko
2007-03-09 21:37 ` Linus Torvalds
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