Mercurial > hg
view tests/test-addremove-similar.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 | 5abc47d4ca6b |
children | 5b89626c11e9 |
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$ hg init rep; cd rep $ touch empty-file $ "$PYTHON" -c 'for x in range(10000): print(x)' > large-file $ hg addremove adding empty-file adding large-file $ hg commit -m A $ rm large-file empty-file $ "$PYTHON" -c 'for x in range(10,10000): print(x)' > another-file $ hg addremove -s50 adding another-file removing empty-file removing large-file recording removal of large-file as rename to another-file (99% similar) $ hg commit -m B comparing two empty files caused ZeroDivisionError in the past $ hg update -C 0 2 files updated, 0 files merged, 1 files removed, 0 files unresolved $ rm empty-file $ touch another-empty-file $ hg addremove -s50 adding another-empty-file removing empty-file $ cd .. $ hg init rep2; cd rep2 $ "$PYTHON" -c 'for x in range(10000): print(x)' > large-file $ "$PYTHON" -c 'for x in range(50): print(x)' > tiny-file $ hg addremove adding large-file adding tiny-file $ hg commit -m A $ "$PYTHON" -c 'for x in range(70): print(x)' > small-file $ rm tiny-file $ rm large-file $ hg addremove -s50 removing large-file adding small-file removing tiny-file recording removal of tiny-file as rename to small-file (82% similar) $ hg commit -m B should be sorted by path for stable result $ for i in `"$PYTHON" $TESTDIR/seq.py 0 9`; do > cp small-file $i > done $ rm small-file $ hg addremove adding 0 adding 1 adding 2 adding 3 adding 4 adding 5 adding 6 adding 7 adding 8 adding 9 removing small-file recording removal of small-file as rename to 0 (100% similar) recording removal of small-file as rename to 1 (100% similar) recording removal of small-file as rename to 2 (100% similar) recording removal of small-file as rename to 3 (100% similar) recording removal of small-file as rename to 4 (100% similar) recording removal of small-file as rename to 5 (100% similar) recording removal of small-file as rename to 6 (100% similar) recording removal of small-file as rename to 7 (100% similar) recording removal of small-file as rename to 8 (100% similar) recording removal of small-file as rename to 9 (100% similar) $ hg commit -m '10 same files' pick one from many identical files $ cp 0 a $ rm `"$PYTHON" $TESTDIR/seq.py 0 9` $ hg addremove removing 0 removing 1 removing 2 removing 3 removing 4 removing 5 removing 6 removing 7 removing 8 removing 9 adding a recording removal of 0 as rename to a (100% similar) $ hg revert -aq pick one from many similar files $ cp 0 a $ for i in `"$PYTHON" $TESTDIR/seq.py 0 9`; do > echo $i >> $i > done $ hg commit -m 'make them slightly different' $ rm `"$PYTHON" $TESTDIR/seq.py 0 9` $ hg addremove -s50 removing 0 removing 1 removing 2 removing 3 removing 4 removing 5 removing 6 removing 7 removing 8 removing 9 adding a recording removal of 0 as rename to a (99% similar) $ hg commit -m 'always the same file should be selected' should all fail $ hg addremove -s foo abort: similarity must be a number [255] $ hg addremove -s -1 abort: similarity must be between 0 and 100 [255] $ hg addremove -s 1e6 abort: similarity must be between 0 and 100 [255] $ cd .. Issue1527: repeated addremove causes Abort $ hg init rep3; cd rep3 $ mkdir d $ echo a > d/a $ hg add d/a $ hg commit -m 1 $ mv d/a d/b $ hg addremove -s80 removing d/a adding d/b recording removal of d/a as rename to d/b (100% similar) $ hg debugstate r 0 0 1970-01-01 00:00:00 d/a a 0 -1 unset d/b copy: d/a -> d/b $ mv d/b c no copies found here (since the target isn't in d $ hg addremove -s80 d removing d/b copies here $ hg addremove -s80 adding c recording removal of d/a as rename to c (100% similar) $ cd ..