Mercurial > hg
view tests/test-bookmarks-rebase.t @ 41247:a89b20a49c13
rust-cpython: using MissingAncestors from Python code
As precedently done with LazyAncestors on cpython.rs, we test for the
presence of the 'rustext' module.
incrementalmissingrevs() has two callers within the Mercurial core:
`setdiscovery.partialdiscovery` and the `only()` revset.
This move shows a significant discovery performance improvement
in cases where the baseline is slow: using perfdiscovery on the PyPy
repos, prepared with `contrib/discovery-helper <repo> 50 100`, we
get averaged medians of 403ms with the Rust version vs 742ms without
(about 45% better).
But there are still indications that performance can be worse in cases
the baseline is fast, possibly due to the conversion from Python to
Rust and back becoming the bottleneck. We could measure this on
mozilla-central in cases were the delta is just a few changesets.
This requires confirmation, but if that's the reason, then an
upcoming `partialdiscovery` fully in Rust should solve the problem.
Differential Revision: https://phab.mercurial-scm.org/D5551
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Fri, 30 Nov 2018 14:35:57 +0100 |
parents | 4441705b7111 |
children | dc5e5577af39 |
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$ echo "[extensions]" >> $HGRCPATH $ echo "rebase=" >> $HGRCPATH initialize repository $ hg init $ echo 'a' > a $ hg ci -A -m "0" adding a $ echo 'b' > b $ hg ci -A -m "1" adding b $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo 'c' > c $ hg ci -A -m "2" adding c created new head $ echo 'd' > d $ hg ci -A -m "3" adding d $ hg bookmark -r 1 one $ hg bookmark -r 3 two $ hg up -q two bookmark list $ hg bookmark one 1:925d80f479bb * two 3:2ae46b1d99a7 rebase $ hg rebase -s two -d one rebasing 3:2ae46b1d99a7 "3" (two tip) saved backup bundle to $TESTTMP/.hg/strip-backup/2ae46b1d99a7-e6b057bc-rebase.hg $ hg log changeset: 3:42e5ed2cdcf4 bookmark: two tag: tip parent: 1:925d80f479bb user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 2:db815d6d32e6 parent: 0:f7b1eb17ad24 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 1:925d80f479bb bookmark: one user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 0:f7b1eb17ad24 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 aborted rebase should restore active bookmark. $ hg up 1 0 files updated, 0 files merged, 1 files removed, 0 files unresolved (leaving bookmark two) $ echo 'e' > d $ hg ci -A -m "4" adding d created new head $ hg bookmark three $ hg rebase -s three -d two rebasing 4:dd7c838e8362 "4" (three tip) merging d warning: conflicts while merging d! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ hg rebase --abort rebase aborted $ hg bookmark one 1:925d80f479bb * three 4:dd7c838e8362 two 3:42e5ed2cdcf4 after aborted rebase, restoring a bookmark that has been removed should not fail $ hg rebase -s three -d two rebasing 4:dd7c838e8362 "4" (three tip) merging d warning: conflicts while merging d! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ hg bookmark -d three $ hg rebase --abort rebase aborted $ hg bookmark one 1:925d80f479bb two 3:42e5ed2cdcf4