Re: Add note about IANA confirmation

From: Junio C Hamano <junkio@cox.net>
Date: Sep 12, 2005, 21:41 UTC
Message-ID: <7vk6hm7ymd.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <Pine.LNX.4.58.0509121057520.3242@g5.osdl.org>

Linus Torvalds <torvalds@osdl.org> writes:

> The git port (9418) is officially listed by IANA now.

Thanks.  Applied.

> Btw, another thing happened yesterday too: I'm now officially using a
> packed archive for my core kernel stuff. The format hasn't changed in
> I-don't-know-how-long, and I can't recall any pack-specific bug either
> (apart from the obvious lack of support by some of the client-side stuff).

You are brave ;-).

Seriously, packed archive seems to be really stable. I've been on packed archive for git.git for quite some time now, and all of my recent read-tree and merge experiments have been done on a linux-2.6 repository that has several maintainer trees rolled into a single big ball of wax, packed into one pack that weighs about 76MB, with a few handred unpacked objects.

I noticed one thing that is a bit curious. Packing the same set of objects with --window=50 seems to give worse packing result (space-wise) than with --window=10, which is the default if I recall correctly.

: siamese; git-rev-list --objects v2.6.12 >++object-list-2.6.12
: siamese; git-pack-objects --window=50 --stdout \
  <./++object-list-2.6.12 >./++pack-w50.pack
Packing 31617 objects
: siamese; git-pack-objects --window=10 --stdout \
  <./++object-list-2.6.12 >./++pack-w10.pack
Packing 31617 objects
: siamese; ls -l ./++pack-w*.pack
-rw-rw-r--  1 junio src 57240724 Sep 12 14:39 ./++pack-w10.pack
-rw-rw-r--  1 junio src 57411879 Sep 12 14:37 ./++pack-w50.pack

BTW, I happen to know one pathological case where 'git repack' would do a wrong thing and abort, but it is really of "doctor if I do this it hurts -- do not do it then" kind, so it is not on my priority list right now.