Re: kernel.org and GIT tree rebuilding

On Sunday 26 June 2005 12:41, Linus Torvalds wrote:

On Fri, 24 Jun 2005, Linus Torvalds wrote:

quoted

yeah, it clearly needs some refining to be useful, but I think you can
kind of see how it would work.

Ok, here's how it works.

 - Pick a starting commit (or a hundred)

 - Pick an ending commit (or a hundred)

 - generate the list of objects in between them

	git-rev-list --object end ^start > object-list

 - Pack that list of objects into an "object pack":

	git-pack-objects out < object-list

Without having read the code, the big thing that hurt performance in my early 
packed file work was compressing the whole packed file instead of individual 
sub-objects.  It takes more room to compress each object, but when I 
compressed the whole thing read performance was quite bad.

-chris