Parrot is a virtual machine designed to efficiently compile and execute bytecode for dynamic languages. Parrot currently hosts a variety of language implementations in various stages of completion, including Tcl, Javascript, Ruby, Lua, Scheme, PHP, Python, Perl 6, APL, and a .NET bytecode translator. Parrot is not about parrots, though we are rather fond of them for obvious reasons.

GSoC 2014 - Report 8

Hey everyone!

Let me share this week's progress.

Earlier this week, I finished my tests with Parrot for its releases 2.7 - 3.0. Including rurban's profiling, we now have data (reliable to some extent) for the commits in this range. The main objective for the profiling was to determine the highest overhead to be targeted next for refactor.

(For the list of all the identified overheads, please take a look at - http://wiki.enlightenedperl.org/gsoc2014/ideas/improve_performance_of_me...)

Parrot 6.6.0 "Parrothead" released!

As a dreamer of dreams and a travelin' man,
I have chalked up many a mile.
Read dozens of books about heroes and crooks,
And I've learned much from both of their styles.
    -- Heard playing in Margaritaville bar,
       in Orlando after YAPC::NA::2014.

On behalf of the Parrot team, I'm proud to announce Parrot 6.6.0, also known as "Parrothead". Parrot is a virtual machine aimed at running all dynamic languages.

GSoC 2014 - Report 7

Hey everyone!

My this week's work involves testing. With this work, we are trying to figure out the commits that slowed down Parrot during its releases 2.7 - 3.0. To do this, I am running the bench.sh tool provided in parrot-bench. rurban is helping me out with these tests to save time (since I have got a slow machine) and also to cross-check results.

GSoC 2014 - Report 6

Hey everyone!

I am happy to announce that my task #2 (https://github.com/parrot/parrot/issues/1080) is now complete and the issue has been closed.

To give a gist of what has been done -

The goal was to optimize the pmc2c compiler, more specifically the PCCMETHODs, by avoiding the run-time overhead of having to call two costly C functions per method call. These C functions were:-

Parrot_pcc_fill_params_from_c_args(interp, _call_object, sig, &_self, args...);
and
Parrot_pcc_set_call_from_c_args(interp, _call_object, rettype, result);

GSoC 2014 - Report 5

Hey everyone!

I will catch you up on my work this week. As I had mentioned in my last post (http://www.parrot.org/zyroz4), I have already started working on a new task (https://github.com/parrot/parrot/issues/1080).

Since, this work requires me to make changes to the Pmc2c compiler, I am required to code in Perl. I am however, new to Perl and thus, spent quite some time getting used to some basic coding in Perl this week.

GSoC 2014 - Report 4

Hey everyone!

Let me share the progress for this week.

I have successfully finished my task #1 that required me to add write barriers to the PMC methods (https://github.com/parrot/parrot/issues/1069).

For this task, I had finished most of the work last week itself (http://www.parrot.org/zyroz3).

This week I mostly verified all the WB annotations for one last time and it did help me to fix some bugs and incorrect WBs. All this work is now part of our latest release for Parrot 6.5.0 and we have achieved a speed improvement of around 2.5% - 5% through this task!

Parrot 6.5.0 "Black-winged Lovebird" Released

Parrot 6.5.0 is available on Parrot's FTP site, or by following the download instructions.
For those who want to hack on Parrot or languages that run on top of Parrot, we recommend our organization page on GitHub, or you can go directly to the official Parrot Git repo on Github

GSoC 2014 - Report 3

Hey everyone!

There is a lot of good news to share this week! Our GSoC task #1 (https://github.com/parrot/parrot/issues/1069) is a success!! :D

So, I have been spending a lot of time looking into and fixing 95 pmc files with a calculated number of 2230 methods for core PMCs alone...

GSoC 2014 - Report 2

Hey everyone!

I will be filling you in with what we have achieved in the last week.

So, rurban has fixed up the pmc2c compiler and it looks good to handle the write barriers. However, the rules that we had followed earlier to place these WBs in the PMCs have been changed to some extent for a better performance. You can have a look at them @ https://github.com/parrot/parrot/issues/1069.

My major work has involved verifying and correcting the annotations for the WBs in the methods for each PMC. There are about 95 .pmc files and I am about to reach the half way mark.

GSoC 2014 project - Kick off!

Hey everyone!

I am really happy to announce that my GSoC project has gotten underway! I would first like to thank everybody to have given me this wonderful opportunity to be part of the community.

My project's primary objective is to improve the performance of the method signatures. To get the hang of things and understand how method calls and GC work, I have started working on a task that requires me to optimize GC write barriers in the pmc's (https://github.com/parrot/parrot/issues/1069).

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