From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@osdl.org>
Cc: git@vger.kernel.org
Subject: Re: full kernel history, in patchset format
Date: Sat, 16 Apr 2005 21:41:26 +0200 [thread overview]
Message-ID: <20050416194126.GA28429@elte.hu> (raw)
In-Reply-To: <Pine.LNX.4.58.0504160953310.7211@ppc970.osdl.org>
* Linus Torvalds <torvalds@osdl.org> wrote:
> > the history data starts at 2.4.0 and ends at 2.6.12-rc2. I've included a
> > script that will apply all the patches in order and will create a
> > pristine 2.6.12-rc2 tree.
>
> Hey, that's great. I got the CVS repo too, and I was looking at it,
> but the more I looked at it, the more I felt that the main reason I
> want to import it into git ends up being to validate that my size
> estimates are at all realistic.
>
> I see that Thomas Gleixner seems to have done that already, and come
> to a figure of 3.2GB for the last three years, which I'm very happy
> with, mainly because it seems to match my estimates to a tee. [...]
(yeah, we apparently worked in parallel - i only learned about his
efforts after i sent my mail. He was using BK to extract info, i was
using the CVS tree alone and no BK code whatsoever. (I dont think there
will be any argument about who owns what, but i wanted to be on the safe
side, and i also wanted to see how complete and usable the CVS metadata
is - it's close to perfect i'd say, for the purposes i care about.))
> But I wonder if we actually want to actually populate the whole
> history..
yeah, it definitely feels a bit brave to import 28,000 changesets into a
source-code database project that will be a whopping 2 weeks old in 2
days ;) Even if we felt 100% confident about all the basics (which we do
of course ;), it's just simply too young to tie things down via a 3.2GB
database. It feels much more natural to grow it gradually, 28,000
changesets i'm afraid would just suffocate the 'project growth
dynamics'. Not going too fast is just as important as not going too
slow.
I didnt generate the patchset to get it added into some central
repository right now, i generated it to check that we _do_ have all the
revision history in an easy to understand format which does generate
today's kernel tree, so that we can lean back and worry about the full
database once things get a bit more settled down (in a couple of months
or so). It's also an easy testbed for GIT itself.
but the revision history was one of the main reasons i used BK myself,
so we'll need a merged database eventually. Occasionally i needed to
check who was the one who touched a particular piece of code - was that
fantastic new line of code written by me, or was that buggy piece of
crap written by someone else? ;) Also, looking at a change and then
going to the changeset that did it, and then looking at the full picture
was pretty useful too. So that sort of annotation, and generally
navigating around _quickly_ and looking at the 'flow' of changes going
into a particular file was really useful (for me).
Ingo
next prev parent reply other threads:[~2005-04-16 19:38 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-16 13:15 full kernel history, in patchset format Ingo Molnar
2005-04-16 13:35 ` Ingo Molnar
2005-04-16 14:55 ` David Mansfield
2005-04-16 19:18 ` Ingo Molnar
2005-04-16 15:08 ` Francois Romieu
2005-04-16 17:04 ` Linus Torvalds
2005-04-16 17:43 ` Petr Baudis
2005-04-16 15:44 ` Christopher Li
2005-04-16 18:31 ` Junio C Hamano
2005-04-16 18:35 ` Mike Taht
2005-04-16 19:19 ` Junio C Hamano
2005-04-16 16:26 ` Christopher Li
2005-04-16 19:44 ` Junio C Hamano
2005-04-16 19:42 ` Mike Taht
2005-04-16 20:19 ` Daniel Barkalow
2005-04-16 18:46 ` Junio C Hamano
2005-04-16 19:13 ` Jan-Benedict Glaw
2005-04-16 19:23 ` Thomas Gleixner
2005-04-16 18:32 ` Petr Baudis
2005-04-16 18:36 ` Petr Baudis
2005-04-16 19:41 ` Thomas Gleixner
2005-04-16 18:44 ` Linus Torvalds
2005-04-16 19:50 ` Thomas Gleixner
2005-04-16 18:57 ` Petr Baudis
2005-04-16 19:27 ` Junio C Hamano
2005-04-16 19:15 ` Linus Torvalds
2005-04-16 20:35 ` Thomas Gleixner
2005-04-16 23:08 ` David Lang
2005-04-16 19:41 ` Ingo Molnar [this message]
2005-04-17 23:31 ` David Woodhouse
2005-04-17 23:39 ` Petr Baudis
2005-04-18 0:06 ` David Woodhouse
2005-04-18 0:35 ` Petr Baudis
2005-04-18 0:45 ` David Woodhouse
2005-04-18 0:50 ` Petr Baudis
2005-04-18 0:51 ` David Woodhouse
2005-04-18 0:59 ` Petr Baudis
2005-04-18 1:16 ` Linus Torvalds
2005-04-18 1:36 ` David Woodhouse
2005-04-18 10:07 ` Catalin Marinas
2005-04-18 22:41 ` David Mansfield
2005-04-19 8:33 ` Catalin Marinas
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