Mercurial > hg
annotate tests/crashgetbundler.py @ 31467:08ecec297521
bdiff: use Python memory allocator in fixws
Python has its own memory allocation APIs. For allocations
<= 512 bytes, it allocates memory from arenas. This means that
average small allocations don't call the system allocator, which
makes them faster. Also, arena allocations cut down on memory
fragmentation, which can matter for performance in long-running
processes.
Another advantage of using the Python memory allocator is that
allocations are tracked by Python. This is a bigger deal in
Python 3, as modern versions of Python have some decent built-in
tools for examining memory usage, leaks, etc.
This patch converts a trivial malloc() + free() in the bdiff code
to use the Python allocator APIs. Since the object being
operated on is a line, chances are it will use an arena. So,
this could have a net positive impact on performance (although
I didn't measure it).
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 09 Mar 2017 11:54:25 -0800 |
parents | f3807a135e43 |
children | 2372284d9457 |
rev | line source |
---|---|
30914
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
1 from __future__ import absolute_import |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
2 |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
3 from mercurial.i18n import _ |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
4 from mercurial import ( |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
5 changegroup, |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
6 error, |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
7 extensions |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
8 ) |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
9 |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
10 def abort(orig, *args, **kwargs): |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
11 raise error.Abort(_('this is an exercise')) |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
12 |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
13 def uisetup(ui): |
f3807a135e43
wireproto: properly report server Abort during 'getbundle'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
diff
changeset
|
14 extensions.wrapfunction(changegroup, 'getbundler', abort) |