bzr memory usage

[Dimitrios Apostolou]

For the sake of completion I should mention that I applied the patch from 
bug #737234 to bzr v2.3.1 and now lightweight checkouts and stacked 
branches seem to transfer a logical amount of data, and finish in a timely 
manner, making bzr usable for such huge projects.

In particular they both finished in ~20min after tranfering ~540MB which 
makes them now usable. On disk directories have a size of 625MB. Memory 
usage still peaks at 500MB, but at least I can download elsewhere and make 
a tarball of the checkout/branch.

Still, I am curious as to why technically it needs to store that much data 
in memory. I mean if it only downloads data (not metadata), then whatever 
it downloads, it writes it to disk, like wget does...


Dimitris