Re: [Gnu-arch-users] Re: Why we might use subversion instead of arch.

[Robin Farine]

John Goerzen wrote:

> Setting up a local revision library is out of the question due to the
> apalling space requirements this would require.

Well, today, a 200GB HD costs about 150 Euros and you a lot 
of revisions can fit on such a beast. So is a revision 
library really out of question?

I am using a greedy library. A 'tla changes' on a Linux 
2.6.0 tree hard linked to the library and with a few changes 
in it takes about 3s (with name ids). On a tree two thirds 
the size of the Linux kernel tree but with explicit ids, 
'tla changes' takes about 4s.

Without actually knowing the respective complexities (I mean 
function of the number of files) of the 'tla changes' 
operation with names and explicit ids, I would say that a 
'tla changes' on the kernel with explicit ids would run in 
about 11s. Or something like that.

So I am quite happy with tla but nevertheless admit that I 
have no idea on how Subversion behaves with this same tree 
in terms of storage requirements and operation time. Do you 
have any concrete values?


Robin