When I showed Benjamin (a college of mine) my TPF 2010Q3 grant proposal, we slipped to a discussion about deploying Perl software. Nice (and recent) list of different approaches can be found @modernperlbooks.com. To sum it up => TIMTOWTDI. Which is good, but none of those is perfect. The Perl+CPAN world is way too complex.
Xacobeo a Perl GUI to visualize XML and perform XPath queries just entered Debian unstable - http://packages.debian.org/sid/xacobeo.
It is amazing what happened to the Python thanks to just one company. The killer feature of that company is that they can handle and manage millions of servers and even give them for a public usage => "..., there are no servers to maintain: You just upload your application, and it's ready to serve your users.". I would like this to be true one day for Perl too!
perl -MTest::LeakTrace -le 'sub r {return if !$_[0]; r($_[0]-1); } r(1); leaktrace{ r(1);};'
Hmm yes the second recursion calling is not leaking memory any more.
Today @$work we discovered that even dummy recursive calling of a function is leaking memory. Here is the one-liner 10000x calling it self and returning:
perl -MEnglish -MGTop -le 'my $g=GTop->new();$m=$g->proc_mem($PID);print $m->size; sub r { return if not $_[0]; r($_[0]-1); } r(100000); $m=$g->proc_mem($PID); print $m->size;'
The output is:
7122944
34729984
http://www.youtube.com/watch?v=NWHfY_lvKIQ
Joel shows that StackOverflow is (||was?) running on 2 servers (+1 backup) using C# and SQL Server. Impressive
There is also a Perl+Perl6 mentioned in this talk, seek to 38:00 to hear the #1 thing you should never do...
is just a base module responsible for loading extension (Data::Keys::E::*) during the object build time. It just makes sure one of the extensions supplied get() and set() method. The rest is up to the extensions.
get() should be called with one argument a $key and return value for it. set() should be called with $key and $value arguments returning modified (if it was) $key.
So far I've created this extensions:
I didn't know about this easy way to locate Perl modules in Debian packages.
$ dh-make-perl --locate Foo::Bar
Using cached Contents from Fri Mar 26 10:25:51 2010
Foo::Bar is not found in any Debian package
$ dh-make-perl --locate Moose::Meta::Class
Using cached Contents from Fri Mar 26 10:25:51 2010
Moose::Meta::Class is in libmoose-perl package
"The squeeze freeze is also just around the corner AFAIK so I don't think there's much chance of 5.12 making it in. If somebody wants to step up and push for it, they should definitely talk to the release team first."
But it is hard to relax when there is so much interesting things to do and to follow...
I found my self being sick with a fever for the third time this year and realized that hey this is not OK, I do need to slow down and relax. It is really important!
