From: H. Peter Anvin <hpa@zytor.com>
Date: Thu, 30 Jun 2005 21:26:55 GMT
Subject: Re: "git-send-pack"
Message-ID: <42C4639F.4040205@zytor.com>
In-Reply-To: <42C462CD.9010909@zytor.com>

H. Peter Anvin wrote:
> Linus Torvalds wrote:
> 
>>
>>> For the purposes of rsync, storing the objects in a single 
>>> append-only file would be a very efficient method, since the rsync 
>>> algorithm will quickly discover an invariant head and only transmit 
>>> the tail.
>>
>>
>> Actually, it won't be "quick" - it will have to read the whole file 
>> and do it's hash window thing.
>>
> 
> It does that, but it only have to do that when the actual file has 
> changed.  That's acceptable, at least for the repository sizes we're 
> likely to deal with within the medium term.
> 

I guess I should clarify a bit here.  I'm concerned with two aspects: 
the "keeping mirrors in sync" problem, where asking people to use a tool 
other than rsync is a really tough sell, and the developer usage 
scenario, in which case something git-aware is obviously the better thing.

	-hpa