On 14:08 Tue 10 Feb     , Robin H. Johnson wrote:
> On Tue, Feb 10, 2009 at 01:51:34PM -0800, Donnie Berkholz wrote:
> > - Robin has commented that he doesn't know what kind of server-side 
> > resources are required. I've talked to a number of git admins 
> > (kernel.org, fedora, freedesktop.org, gnome), and they have all said the 
> > hardware requirements for git are negligible. They don't have any 
> > resource on their servers that's being used up. It's gitweb that is 
> > somewhat resource-intensive.
>
> A specific comment on this (I know I've been away lately, I'm busy
> getting back to things now that I've moved house). Git devours RAM.
> During pull actions, if the pull triggers a build of a custom pack on
> the server, it can snowball to kill the box with IO load due to swap and
> later OOM.
> 
> The git-upload-pack that runs on the server side when you do a 'git
> clone ...' at the moment for the gentoo-x86.git repo exceeds 1GB of RAM
> after 10 minutes of running. The box only has 2GB of RAM, so it hits
> swap quickly, and things go downhill very fast from there.

Thanks, Robin! To be very specific about one of the above, the Gnome box 
is a dual-CPU with 8G RAM on some kind of RAID. Owen Taylor (otaylor on 
IRC) informed me that it handled git with no problem at insignicant 
load.

OTOH, I don't know of anyone with a repo more than 1/2 the size of ours 
and maybe 1/4 the object count. My local clone of the kernel is ~600M.

-- 
Thanks,
Donnie

Donnie Berkholz
Developer, Gentoo Linux
Blog: http://dberkholz.wordpress.com