Mercurial > hg-stable
view tests/test-revset-dirstate-parents.t @ 44180:58c74a517a00 stable
rust-dirstatemap: cache non normal and other parent set
Performance of `hg update` was significantly worse since the introduction of
the Rust `dirstatemap`. This regression was noticed by Valentin Gatien-Baron
when working on a large repository, as it goes unnoticed for smaller
repositories like Mercurial itself.
This fix introduces the same getter/setter mechanism at `hg-core` level as
for `set/get_dirs`.
While this technique is, as previously discussed, quite suboptimal, it fixes an
important enough problem. Refactoring `hg-core` to use the typestate
pattern could be a good approach to improving code quality in a future patch.
This is a graft of stable of 83b2b829c94e
Differential Revision: https://phab.mercurial-scm.org/D8110
author | Raphaël Gomès <rgomes@octobus.net> |
---|---|
date | Thu, 30 Jan 2020 14:57:02 +0100 |
parents | 7bbc4e113e5f |
children |
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$ HGENCODING=utf-8 $ export HGENCODING $ try() { > hg debugrevspec --debug $@ > } $ log() { > hg log --template '{rev}\n' -r "$1" > } $ hg init repo $ cd repo $ try 'p1()' (func (symbol 'p1') None) * set: <baseset []> $ try 'p2()' (func (symbol 'p2') None) * set: <baseset []> $ try 'parents()' (func (symbol 'parents') None) * set: <baseset+ []> null revision $ log 'p1()' $ log 'p2()' $ log 'parents()' working dir with a single parent $ echo a > a $ hg ci -Aqm0 $ log 'p1()' 0 $ log 'tag() and p1()' $ log 'p2()' $ log 'parents()' 0 $ log 'tag() and parents()' merge in progress $ echo b > b $ hg ci -Aqm1 $ hg up -q 0 $ echo c > c $ hg ci -Aqm2 $ hg merge -q $ log 'p1()' 2 $ log 'p2()' 1 $ log 'tag() and p2()' $ log 'parents()' 1 2 $ cd ..