Mercurial > hg
view tests/test-issue1102.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 | 4591cd6b6794 |
children | 805419729e11 |
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$ rm -rf a $ hg init a $ cd a $ echo a > a $ hg ci -Am0 adding a $ hg tag t1 # 1 $ hg tag --remove t1 # 2 $ hg co 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg tag -f -r0 t1 $ hg tags tip 3:a49829c4fc11 t1 0:f7b1eb17ad24 $ cd ..