Mercurial > hg-stable
view tests/test-issue1438.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 | 2fc86d92c4a9 |
children | 55c6ebd11cb9 |
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#require symlink https://bz.mercurial-scm.org/1438 $ hg init $ ln -s foo link $ hg add link $ hg ci -mbad link $ hg rm link $ hg ci -mok $ hg diff -g -r 0:1 > bad.patch $ hg up 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg import --no-commit bad.patch applying bad.patch $ hg status R link ? bad.patch