Mercurial > hg
view tests/test-issue2137.t @ 36146:29dd37a418aa
bdiff: write a native version of splitnewlines
./hg perfunidiff mercurial/manifest.py 0 --count 500 --profile before:
! wall 0.309280 comb 0.350000 user 0.290000 sys 0.060000 (best of 32)
./hg perfunidiff mercurial/manifest.py 0 --count 500 --profile after:
! wall 0.241572 comb 0.260000 user 0.240000 sys 0.020000 (best of 39)
so it's about 20% faster. I hate Python. I wish we could usefully
write this in Rust, but it doesn't look like that's realistic without
using the cpython crate, which I'd still like to avoid.
Differential Revision: https://phab.mercurial-scm.org/D1973
author | Augie Fackler <augie@google.com> |
---|---|
date | Thu, 25 Jan 2018 21:16:28 -0500 |
parents | 2fc86d92c4a9 |
children | c4ccc73f9d49 |
line wrap: on
line source
https://bz.mercurial-scm.org/2137 Setup: create a little extension that has 3 side-effects: 1) ensure changelog data is not inlined 2) make revlog to use lazyparser 3) test that repo.lookup() works 1 and 2 are preconditions for the bug; 3 is the bug. $ cat > commitwrapper.py <<EOF > from mercurial import extensions, node, revlog > > def reposetup(ui, repo): > class wraprepo(repo.__class__): > def commit(self, *args, **kwargs): > result = super(wraprepo, self).commit(*args, **kwargs) > tip1 = node.short(repo.changelog.tip()) > tip2 = node.short(repo.lookup(tip1)) > assert tip1 == tip2 > ui.write('new tip: %s\n' % tip1) > return result > repo.__class__ = wraprepo > > def extsetup(ui): > revlog._maxinline = 8 # split out 00changelog.d early > revlog._prereadsize = 8 # use revlog.lazyparser > EOF $ cat >> $HGRCPATH <<EOF > [extensions] > commitwrapper = `pwd`/commitwrapper.py > EOF $ hg init repo1 $ cd repo1 $ echo a > a $ hg commit -A -m'add a with a long commit message to make the changelog a bit bigger' adding a new tip: 553596fad57b Test that new changesets are visible to repo.lookup(): $ echo a >> a $ hg commit -m'one more commit to demonstrate the bug' new tip: 799ae3599e0e $ hg tip changeset: 1:799ae3599e0e tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: one more commit to demonstrate the bug $ cd ..