Summary of memory consumption improvements

[Ian Clatworthy]

John Arbash Meinel wrote:

> Anyway, the numbers are looking pretty good, though as mentioned I'm
> only at 60%, and I'm shooting for 50% for the 2.1.0b2 release. I still
> have the chk_map code to land, and some bits to clean up here and there.

Fantastic work!

FWIW, the biggest problem I have is memory consumption during
fast-imports. Trying to pack OOo with 260k revisions is ugly - my 6G
desktop just isn't enough to do it in 2.0.0. It's not always pack though
- simply importing the first few thousand (hundred?) revisions of Qt is
a major memory hog.

When you get a chance, perhaps you'll like to look into what happens
during either of the above operations? I know imports are a one-off
process but I suspect the problems are symptoms of problems we'd be
seeing on commit/push/etc. if Bazaar was actually used on those projects.

Ian C.