Mercurial > hg
view tests/test-debugindexdot.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 | a03c3ba3e4b5 |
children | 435481393198 |
line wrap: on
line source
Just exercise debugindexdot Create a short file history including a merge. $ hg init t $ cd t $ echo a > a $ hg ci -qAm t1 -d '0 0' $ echo a >> a $ hg ci -m t2 -d '1 0' $ hg up -qC 0 $ echo b >> a $ hg ci -m t3 -d '2 0' created new head $ HGMERGE=true hg merge -q $ hg ci -m merge -d '3 0' $ hg debugindexdot .hg/store/data/a.i digraph G { -1 -> 0 0 -> 1 0 -> 2 2 -> 3 1 -> 3 } $ cd ..