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From: Junio C Hamano <junkio@cox.net>
To: Nicolas Pitre <nico@cam.org>
Cc: Dana How <danahow@gmail.com>, Git Mailing List <git@vger.kernel.org>
Subject: Re: [PATCH v2] Custom compression levels for objects and packs
Date: Wed, 09 May 2007 09:26:25 -0700	[thread overview]
Message-ID: <7vlkfyt13i.fsf@assigned-by-dhcp.cox.net> (raw)
In-Reply-To: <alpine.LFD.0.99.0705091048120.24220@xanadu.home> (Nicolas Pitre's message of "Wed, 09 May 2007 11:27:28 -0400 (EDT)")

Nicolas Pitre <nico@cam.org> writes:

> So I suggest that we get rid of core.legacyheaders, preserve the legacy 
> format as the only writable loose object format and deprecate the other 
> one to keep things simpler.  Thoughts?

I agree with your analysis, especially when deeper delta chains
are allowed, straight copy of loose object becomes less and less
likely.

> What we need instead is a --no-reuse-object that would force 
> recompression of everything when you really want to enforce a specific 
> compression level across the whole pack(s).

Yeah.  Or maybe --no-reuse to mean both and make '-f' a
short-hand synonym for that.

I do not see much reason to want to tweak them independently;
recomputing delta is much more expensive than recompressing
anyway, and when the user says 'repack -f', it is a sign that
the user is willing to spend CPU cycles.

  reply	other threads:[~2007-05-09 16:26 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-08 22:38 [PATCH v2] Custom compression levels for objects and packs Dana How
2007-05-08 23:56 ` Junio C Hamano
2007-05-09  0:16   ` Nicolas Pitre
2007-05-09  0:29     ` Dana How
2007-05-09  1:03       ` Nicolas Pitre
2007-05-09  6:46         ` Dana How
2007-05-09  7:13           ` Junio C Hamano
2007-05-09  0:25   ` Dana How
2007-05-09  1:23     ` Nicolas Pitre
2007-05-09  9:21       ` Dana How
2007-05-09 15:27         ` Nicolas Pitre
2007-05-09 16:26           ` Junio C Hamano [this message]
2007-05-09 16:42             ` Dana How
2007-05-09 16:59             ` [PATCH] make "repack -f" imply "pack-objects --no-reuse-object" Nicolas Pitre
2007-05-09 18:42             ` [PATCH] deprecate the new loose object header format Nicolas Pitre
2007-05-09 20:16               ` Dana How
2007-05-09 20:42                 ` Nicolas Pitre
2007-05-09 21:00                   ` Dana How
2007-05-09  5:59     ` [PATCH v2] Custom compression levels for objects and packs Junio C Hamano
2007-05-09  6:24       ` Dana How
2007-05-09  0:30 ` Petr Baudis
2007-05-09 13:56 ` Theodore Tso
2007-05-09 16:44   ` Dana How

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