From: Nguyen Thai Ngoc Duy Date: Sat, 13 Dec 2008 15:46:50 GMT Subject: Re: Optimizing cloning of a high object count repository Message-ID: In-Reply-To: <200812131624.57618.Resul-Cetin@gmx.net> On 12/13/08, Resul Cetin wrote: > Hi, > there are currently different ideas to move gentoo's cvs repository to an > other scm. Current tests showed that svn will not make anything better (it > gets in most perfomance and size based benchmarks even worse). Another idea is > to move to git. It looks really promising in size based benchmarks but cloning > seems nearly impossible. The current test repository is available at > git://git.overlays.gentoo.org/exp/gentoo-x86.git and is around 900MB in size > and has 4696137 objects. It really takes ages to do the counting of the > objects on the server and compressing takes much longer. > The size of the linux repository seems to be smaller but in the same range > object count and repository size but clones are much much faster. Is there any > way to optimize the server operations like counting and compressing of objects > to get the same speed as we get from git.kernel.org (which does it in nearly > no time and the only limiting factor seems to be my bandwith)? > The only other information I have is that Robin H. Johnson made a single > ~910MiB pack for the whole repository. Make yearly packed repository snapshots and publish them via http. People can wget the latest snapshot, then pull updates later. -- Duy