Maintaining the Perl 5 Core: October / November 2016 report
Mon, 09-Jan-2017 by
Makoto Nozaki
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*Dave Mitchell writes:*
<pre>
I spent last the last two months:
* reworking list assignment (especially with an aggregate on the LHS) to
be much faster in many cases. For example, this code is 33% faster in
5.25.7 compared with 5.24.0:
my @a;
for my $i (1..10_000_000) {
@a = (1,2,3);
@a = ();
}
* trying to reduce the overhead of compile time a bit;
* freeing up some uses of SV flags;
* fixing various assorted bugs as listed below;
SUMMARY:
59:16 [perl #127999] Slowdown in split + list assign
8:28 [perl #129140] attempting double-free Perl_safesysfree util.c:388
0:23 [perl #129771] %+ not scoped properly
0:16 [perl #129802] Regexp performance problem with swiped strings (?)
1:13 [perl #129821] Bleadperl v5.25.5-65-g5012eeb breaks JJORE/Devel-OptreeDiff-2.3.tar.gz
3:01 [perl #129825] Overloaded integer constants are prematurely deallocated
0:34 [perl #129950] Some UTF-8 regular expression matches fail when read from file
0:10 [perl #129954] dist/Carp/t/arg_string.t: Test fails in blead
3:51 [perl #129991] Assertion failure in S_aassign_copy_common
7:23 [perl #129996] BBC Devel-SearchINC
4:01 [perl #129997] heap-use-after-free sv_catpvn_flags() within Perl_do_vop
8:44 [perl #130132] Bleadperl breaks Date-Manip
1:27 [perl #130188] crash on return from substitution in subroutine
8:00 eliminate some ugly SV flag usages
1:00 fix build warnings and smoke failures
2:30 miscellaneous fixups
2:09 optimise undef assignment
13:36 performance of keywords.c
7:33 process p5p mailbox
1:00 review security tickets
1:40 split to an array creating RO elements
------
136:15 TOTAL (HH::MM)
163.4 weeks
2243.6 total hours
13.7 average hours per week
There are 156 hours left on the grant
</pre>
*Note: This report was sent in December and signed off by Marcus Holland-Moritz on Jan 6th.*
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