Re: [PATCH] [RFC] Generational repacking

[Nicolas Pitre <nico@cam.org>]

On Thu, 7 Jun 2007, Sam Vilain wrote:

> Nicolas Pitre wrote:
> >>   2. repack takes too long to run very regularly; it's an occasional
> >>      command.
> > It doesn't take long at all when you don't use -a.
> 
> Well that depends how many loose objects there are :)  I heard about on
> Windows a case where packing 30k loose objects took over an hour.

And your patch cannot change anything to that, right?
You shouldn't wait until 30k loose objects accumulate before repacking.

> >> What I'm aiming for is something which is light enough that it might
> >> even win back the performance loss you got from 1), and to solve the
> >> perception problem of 3).
> > 
> > Run git-repack without -a from some hook.  You can even launch it in the 
> > background.
> > 
> > Or what am I missing?
> 
> If you repack every 100 objects without -a, sure it will be fast, but
> you'll end up with too many packs.

You just need to adjust this treshold of 100 objects.

And latest GIT behaves _much_ better with lots of packs, almost like if 
there was only one pack.  See the test results I posted to the list.


Nicolas