Some regression in revset add 5 minutes of phase movement when cloning the mozilla repository. See issue4352 for details on the revset issue. Solving the revset regression is probably too big for stable. So this issue exists to discuss solution suitable for stable.
*** Bug 4379 has been marked as a duplicate of this bug. ***
Fixed by http://selenic.com/repo/hg/rev/300e07582e9b Pierre-Yves David <pierre-yves.david@fb.com> revset: add an optimised baseset.__contains__ (issue4371) The baseset class is based on a python list. This means that base.__contains__ was absolutely as crappy as list.__contains__. We now rely on __contains__ from the underlying set. This will avoid having to explicitly convert the baseset to a set (using baseset.set()) whenever one want fast membership test. Apparently there is already code that forgot to do such conversions since we observe a massive speedup in some test. revset #25: roots((0::) - (0::tip)) 0) wall 2.079454 comb 2.080000 user 2.080000 sys 0.000000 (best of 5) 1) wall 0.132970 comb 0.130000 user 0.130000 sys 0.000000 (best of 65) No regression is observed in benchmarks. This change improve the issue4371 back to acceptable situation (but are still slower than manual substraction) (please test the fix)
Bulk testing -> fixed