<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=UTF-8" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Ian Clatworthy escreveu: <blockquote cite="mid46AFD9BE.7040001@internode.on.net" type="cite"> <pre wrap="">Fabio Machado de Oliveira wrote: </pre> <blockquote type="cite"> <pre wrap="">My main performance issue would be with the commit command (if I could get past the barrier of convincing 200+ people to change their version control). A single file commit in a project with 10000 files and 115 directories: 1337607 function calls (1299480 primitive calls) in 32.526 CPU seconds Ordered by: cumulative time List reduced from 1023 to 20 due to restriction <20> ncalls tottime percall cumtime percall filename:lineno(function) 1 0.000 0.000 32.526 32.526 commands.py:368(run_argv_aliases) 1 0.002 0.002 32.518 32.518 builtins.py:2187(run) </pre> </blockquote> <pre wrap=""> Yes, the biggest two hot spots in my benchmarking are commit and branch/checkout. I've been working on commit with lots of help from people much smarter than me and there is a solid understand of what still needs to be done. I've temporarily switched focus to documentation because we need more structure/quality there right now but I expect to be back on commit performance in the next week or two. BTW, if you haven't already, try the graphical profiling view given by KCacheGrind. I've attached a sample showing the latest bzr.dev (with the pyrex stuff compiled) running commit on a mozilla-ish tree (~ 50k files) with quite shallow history (~ 10 revisions). It would be interesting to see the same on your tree with your history. If you want to find that, it's as easy as this: bzr --lsprof-file callgrind.out.ci commit -m "blah" kcachegrind callgrind.out.ci As you'll see from the attached, _populate_from_inventory() takes 57% of the overall time. That will dramatically drop once that routine is replaced by a far more efficient way of doing things. If you're keen to help at all, let me know. Ian C. </pre> </blockquote> Hi Ian, I'm not likely to help, but I really appreciate your work. This is my callgrind file. Fábio </body> </html>