Mercurial > hg
view tests/test-issue1438.t @ 33799:05264fc9d8d6
util: make nogc effective for CPython
279cd80059d4 made `util.nogc` a no-op. It was to optimize PyPy. But it slows
down CPython if many objects (like 300k+) are created.
For example, running `hg log -r .` without extensions in `hg-committed` with
14k+ obsmarkers have the following times:
before | after
hg | chg | hg | chg
-----------------------------
1.262 | 0.860 | 1.077 | 0.619 (seconds, best of 20 runs)
Therefore let's re-enable nogc for CPython.
Differential Revision: https://phab.mercurial-scm.org/D402
author | Jun Wu <quark@fb.com> |
---|---|
date | Mon, 14 Aug 2017 22:28:59 -0700 |
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