This is a monthly report by Dave Mitchell on his grant under Perl 5 Core Maintenance Fund. We thank the TPF sponsors to make this grant possible. The main thing I have been doing over the last month is fixing issues related to smoke reports. In particular, I've been looking at Address Sanitizer failures related to memory leaks. SUMMARY: 3:53 RT #133879> heap-use-after-free 0:53 RT #133886 heap-buffer-overflow

Jonathan writes: The majority of my Perl 6 grant time during February was spent on the escape analysis and scalar replacement work. Happily, the first round of work on this analysis and optimization reached the point of being complete and stable enough to merge into MoarVM master, so Perl 6 users can now benefit from it. I also made allocation profiling aware of scalar replacement, meaning profiling does not block

This is a monthly report by Tony Cook on his grant under Perl 5 Core Maintenance Fund. We thank the TPF sponsors to make this grant possible. Approximately 37 tickets were reviewed, and 9 patches were applied 0.85 #108276 re-test, apply to blead 12.83 #124203 reproduce, debugging at start of DB::sub>, try to bisect #124203 bisect some more, review results, notice change in bug and

Tony Cook has requested an extension of $20,000 for his Maintaining Perl 5 grant. This will allow him to dedicate another 400 hours to this work. During this grant he sent regular reports to the p5p mailing list as well as providing monthly summary reports that have been published on this site, the most recent of which are linked below: http://news.perlfoundation.org/2019/01/maintaining-perl-5-tony-cook-d-1.html http://news.perlfoundation.org/2019/02/maintaining-perl-5-tony-cook-j-1.html http://news.perlfoundation.org/2019/03/maintaining-perl-5-tony-cook-f-1.html Before we make a

This is a monthly report by Dave Mitchell on his grant under Perl 5 Core Maintenance Fund. We thank the TPF sponsors to make this grant possible. This "monthly" report covers 3 months, as I've been failing to do much work on perl for a while. Hopefully things will improve now. The main thing I have been doing over this time is fixing issues related to smoke reports. In particular

This is a monthly report by Tony Cook on his grant under Perl 5 Core Maintenance Fund. We thank the TPF sponsors to make this grant possible. Approximately 54 tickets were reviewed, and 11 patches were applied 8.88 #108276 review #108276 check over committed changes, look to re-work, ask list about PERL_OP_PARENT #108276 cleanup PERL_OP_PARENT detritus #108276 review old patches, re-work, testing #108276 more

Jonathan writes: January was a busy and productive month for my Perl 6 grant work. Back in November, I was working on allowing us to lower lexical variables into locals. This is possible when they are not closed over, and allows for generation of more efficient code, which is in turn much easier for backends MoarVM, the JVM, and JavaScript to deal with in their own optimizers. It can also

This is a monthly report by Tony Cook on his grant under Perl 5 Core Maintenance Fund. We thank the TPF sponsors to make this grant possible. Approximately 27 tickets were reviewed or worked on, and 9 patches were applied. 0.52 Cpan #122912 followup 0.33 #131165 review, make public, comment and close 6.29 #133030 review discussion and my old patch, research #133030 testing, cross-platform testing, fixes

Jonathan Worthington has requested an extension of $20,000 for his Perl 6 Performance and Reliability Engineering grant. This will allow him to dedicate another 333 hours to this work. His previous work was successfully delivered as reported in the latest reports: July August September October November December Jonathan writes: "I recently wrote about some of the things I plan to work on for Perl

Jonathan writes: December came with some travel and vacation, and so wasn't ideal for working on the larger ongoing tasks. I did, however, get in numerous smaller fixes, as well as reducing the overhad on regex matching and improving the performance of regex interpolation. Other fixes included a memory leak that was observed to impact Cro applications, a couple of GC errors, and a crash involving a certain interaction of