Mercurial > hg
view tests/test-revlog-ancestry.py.out @ 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 | f88c60e740a1 |
children | b6db2e80a9ce |
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Ancestors of 5 4 2 0 Ancestors of 6 and 5 3 4 2 1 0 Ancestors of 5 and 4 4 2 0 Ancestors of 7, stop at 6 6 Ancestors of 7, including revs 7 6 5 3 4 2 1 0 Ancestors of 7, 5 and 3, including revs 7 5 3 6 4 2 1 0 Descendants of 5 7 8 Descendants of 5 and 3 6 7 8 Descendants of 5 and 4 5 7 8