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2016 Boston.PM Calendar History[edit | edit source]

Tech Meetings are held on the 2nd Tuesday of every month at MIT

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2016[edit | edit source]

December 13th, MIT room E51-376, 7ish[edit | edit source]

Christmas Lights Tour[edit | edit source]

A mutually-guided tour of the first half of several Perl-ish Advent Calendars


Advent calendar images

Bill & Greek Chorus

Around this time of year there is a tradition in the programming communities to share our favorite libraries, tools, and tips we've gathered over the past year. These prizes are dolled out once per day in classic Advent Calendar style. In the next meeting we'll take a look at the highlights from several in-progress Perl-related calendars, including:

  • Perl Advent (classic Perl 5)
  • Perl6 Advent
  • Dancer
  • C::Blocks Advent (a whole calendar for a single module in Beta !?)

and maybe more from the master list via Advent Planet which has other languages and sysadmin, perf, ..., and a code based puzzles.

(Audience participation: As usual, our Greek chorus answers each other's questions about the modules seen.)


NO NOVEMBER meeting[edit | edit source]

2nd Tuesday in November in a Leap year is Election Day - I presume most people will be watching a different channel that night. We often do social in December.

Tues Oct 11th, room E51-376 Bill Ricker, Perl 5.22 & Abe Lincoln's War Cipher[edit | edit source]

Last month, I did my usual Cryptographic History talk before's GPG/PGP keysigning. The title was "Transposition Cyphers in Historic Context", looking at a theory and two specific uses, President Lincoln and German Army Corps WW1. As usual, there was a bit of Perl code used for demonstration - for Lincoln's.

This time, I used the 5.020 experimental features, postderef and signatures, that we've discussed in new release feature reviews (both promoted to stable in 5.024, so safe to use in real code).

{| class="captionBox" style="float: right" | class="captionedImage" | telegram.png |- | class="imageCaption" | a Lincoln telegram |}[edit | edit source]

BLU saw the history, but this month, gets to see the code.

Citizen science links for the transcription project -



Tues Sept 13th, room E51-376 - Brendan Gregg's FlameGraphs (Bill Ricker, moderator)[edit | edit source]


Brendan Gregg's FlameGraph profiler visualization

I stumbled on a link to a set of posts and hand-drawn 'zines' about Linux debugging and 'doing' software at . The Linux Debugging zine includes several 'old friend' tools (which gives me confidence in this person's opinions) and also included new or new to me options and tools, and specifically enthused over Brendan Gregg's invention: FlameGraphs. Brendan invented these to make sense of profile stack samples of MySQL, which produced so much data that he had to invent a new way to visualize ... with Perl, naturally. Tim Bunce has bundled and enhanced FlameGraphs into CPAN NYTProf, but it's usable with any profiler giving full stack traces with symbols (Dtrace, perf, SystemTrap, OS X Instroments, Xperf.exe, NYTProf for Perl). -Bill Ricker

We will watch a video by the author and play with the source code.


| class="captionedImage" | blazing-performance-with-flame-graphs-1-638.jpg |- | class="imageCaption" | Blazing Performance with Flamegraphs cover |}

| class="captionedImage" | debugging-tools-cover-50pc.png |- | class="imageCaption" | Linux Debugging Tools cover |} to the above - highly recommended

NO AUGUST 2016 MEETING[edit | edit source]

Tuesday, July 12th, 2016 - MIT E51-376[edit | edit source]

Bill Ricker & hackathon chorus - Biennial Care and Feeding of's adopted Damian CPAN Module Config::Std[edit | edit source]

Our ?biennial? hackathon to support our adopted Damian module, Config::Std is our July topic.
We have a new old bug -- prior deprecation of literal { becomes fatal in 5.26, coming soon

You'll want to perlbrew a 5.25 or blead-perl if you want to play along with testing on your device.

Tuesday June 14th, room E51-376[edit | edit source]

Tim King[edit | edit source]

Testing Modern Perl with Test::Class[edit | edit source]

Tim will examine best practices for testing Modern Perl, including a tutorial on using Test::Class.

About the speaker
external image portrait-tim-king.png
Tim King is Lead Developer at The Perl Shop. Tim got his start writing real-time embedded software for high-speed centrifuges the 1980’s and went on to do embedded software for Kurzweil Music Systems and Avid Technology. He has been developing for the web since the web existed, and brings discipline and skills honed from embedded systems to enterprise software. His expertise is in designing for software quality, achieved through automated code testing, test-first development, and risk managed refactoring, all through an agile process.

Tuesday May 10th - Canceled[edit | edit source]

Tuesday, April 12th, room E51-376[edit | edit source]

Richard "Ricky" Morse[edit | edit source]

i18n and HTML with Perl[edit | edit source]

Some short observations, including code, on dealing with a multi-lingual website. Mention, and possibly discussion, will be made of Plack, GNU’s Gettext and the PO file, Dom::Tiny (with a possible 1-minute excursion into HTML::Parser), Locale::PO (and various rewritings), the CLDR, and the Locales module.

Tuesday March 8th[edit | edit source]

Rakudo Perl 6 and MoarVM Performance Advances / J. Worthington[edit | edit source]

(By the magic of video - Yapc::EU)

"Performance has long been one of the blockers to greater adoption of Perl 6. The language is designed in expectation of a sufficiently smart optimizer, knowing that such things are possible - but setting quite a challenge for those of us working on Perl 6 implementation.

Following the "make it work, then make it fast" approach, we've done a lot of work over the years on getting many language features to work well in Rakudo. ... In this session I'll discuss how we've been improving Perl 6 performance by working at all levels of the implementation: optimizing built-ins, improving the Perl 6 optimizer's ability to simplify code, and building a powerful dynamic optimizer for MoarVM that uses runtime information about a program's typical behavior to cheapen attribute accesses, resolve dispatches, eliminate type checks, perform inlining, and much more. I'll also take a look at the MoarVM JIT project, and how that is helping.

Finally, I'll take stock of where we're at so far using latest benchmark results: what we can do about as well as Perl 5, where Perl 5 comes out faster, and where Rakudo Perl 6 comes out ahead."

About the speaker
worthington.jpgJonathan Worthington is MoarVM and Rakudo Perl 6 compiler architect. Co-founder of Edument in Czech Republic. Like cooking/eating Indian food, craft beer, and seeing the world.

external image camelia-logo.png

[edit | edit source]

Tues Feb 9th, room E51-376[edit | edit source]

Parallelism, Concurrency, and Asynchrony in Perl 6.[edit | edit source]

Jonathan Worthington
Lead Dev of Rakudo Perl 6 and founder&architect of MoarVM
[appearing via tape delay]
"Parallelism and concurrency are different, though often confused. Asynchrony adds yet another concept into the mix. And there are dozens of different approaches to working with these concepts. How do we identify what kind of problem we're dealing with, and pick an approach to solving it?
"In this session, I'll look at a range of different problems - some parallel, some concurrent - and show the approaches that may be taken to solve them. And, since I've been working on the Perl 6 parallelism and concurrency features, I'll show how these solutions look in Perl 6."

... and any comments from anyone who's downloaded it and messed with it since Sixmas ....

(Note, word is if you had an old RakudoBrew, it needs removal and re-clone for the release.)

January 12th 2016, CANCEL DUE TO WEATHER[edit | edit source]


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