Pierre-Yves David <pierre-yves.david@ens-lyon.org> [Tue, 02 Aug 2016 03:50:58 +0200] rev 29675
tests: remove bundle2 activation from test-hook.t
This is an old config that predate bundle2 on by default. This should have been
remove after Mercurail 3.6 got released.
Pierre-Yves David <pierre-yves.david@ens-lyon.org> [Tue, 02 Aug 2016 03:50:42 +0200] rev 29674
tests: remove bundle2 activation from test-acl.t
This is an old config that predate bundle2 on by default. This should have been
remove after Mercurail 3.6 got released.
Augie Fackler <augie@google.com> [Mon, 01 Aug 2016 13:14:13 -0400] rev 29673
merge with stable
Augie Fackler <raf@durin42.com> [Sat, 01 Oct 2016 15:00:23 -0400] rev 29672
Added signature for changeset 149433e68974
Augie Fackler <raf@durin42.com> [Sat, 01 Oct 2016 15:00:18 -0400] rev 29671
Added tag 3.9.2 for changeset 149433e68974
Augie Fackler <augie@google.com> [Fri, 23 Sep 2016 14:37:15 -0400] rev 29670
py3: update test expectation on stable
Kevin Bullock <kbullock+mercurial@ringworld.org> [Fri, 23 Sep 2016 12:45:10 -0500] rev 29669
grep: rewrite help to better document current (confusing) behavior
timeless <timeless@mozdev.org> [Fri, 02 Sep 2016 20:15:37 +0000] rev 29668
crecord: properly handle files with No newline at eof (issue5268)
Yes, this bug was a single character with the wrong case...
Jun Wu <quark@fb.com> [Fri, 02 Sep 2016 15:20:59 +0100] rev 29667
annotate: pre-calculate the "needed" dictionary (issue5360)
The "needed" dict is used as a reference counter to free items in the giant
"hist" dict. However, currently it is not very accurate and can lead to
dropping "hist" items unnecessarily, for example, with the following DAG,
-3-
/ \
0--1--2--4--
The current algorithm will visit and calculate rev 1 twice, undesired. And
it tries to be smart by clearing rev 1's parents: "pcache[1] = []" at the
time hist[1] being accessed (note: hist[1] needs to be used twice, by rev 2
and rev 3). It can result in incorrect results if p1 of rev 4 deletes chunks
belonging to rev 0.
However, simply removing "needed" is not okay, because it will consume 10x
memory:
# without any change
% HGRCPATH= lrun ./hg annotate mercurial/commands.py -r d130a38 3>&2 [1]
MEMORY 49074176
CPUTIME 9.213
REALTIME 9.270
# with "needed" removed
MEMORY 637673472
CPUTIME 8.164
REALTIME 8.249
This patch moves "needed" (and "pcache") calculation to a separate DFS to
address the issue. It improves perf and fixes issue5360 by correctly reusing
hist, while maintaining low memory usage. Some additional attempt has been
made to further reduce memory usage, like changing "pcache[f] = []" to "del
pcache[f]". Therefore the result can be both faster and lower memory usage:
# with this patch applied
MEMORY 47575040
CPUTIME 7.870
REALTIME 7.926
[1]: lrun is a lightweight sandbox built on Linux cgroup and namespace. It's
used to measure CPU and memory usage here. Source code is available at
github.com/quark-zju/lrun.
Kevin Bullock <kbullock@ringworld.org> [Thu, 01 Sep 2016 14:01:43 -0500] rev 29666
Added signature for changeset ccd436f7db6d