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Re: Index/hash order

From:  Ingo Molnar <mingo-AT-elte.hu>
To:  Linus Torvalds <torvalds-AT-osdl.org>
Subject:  Re: Index/hash order
Date:  Wed, 13 Apr 2005 19:37:34 +0200
Cc:  "H. Peter Anvin" <hpa-AT-zytor.com>, git-AT-vger.kernel.org


* Linus Torvalds <torvalds@osdl.org> wrote:

> In other words, I don't dislike delta's per se. But they are 
> fundamentally incompatible with the very purpose of "git", so git does 
> not use them.

and deltas arent that much of a storage win either: a CVS repository of 
the kernel tree with all history included is 610 MB. The expected 'full' 
size of a comparable GIT repository will be around 1.5-2.0 GB - a factor 
2-3 increase - acceptable.

(unfortunately the kernel tree's size seems to follow Moore's law as 
well, so it's not like hardware will overtake us and kernel repository 
sizes will become peanuts.)

> Trust me, not needing locking is a huge boon. I don't think people 
> realize just how much thought I've put into my database selection and 
> what the implications are.
> 
> It's perfect, I tell you.

sooner or later we'll find a flaw in it. Really! I mean, you've started 
this OS thing 10+ years ago and we are still busy fixing it! ;)

	Ingo
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