Generational GC in Python and Ruby - Pat Shaughnessy
Both the Ruby and Python garbage collectors handle old and young objects differently. Last week I wrote up the my first half of my notes from a presentation I did at RuPy called “Visualizing Garbage Collection in Ruby and Python.” I explained how standard Ruby (also known as Matz’s Ruby Interpreter or MRI) uses a garbage collection (GC) algorithm called mark and sweep, the same basic algorithm dev
Ruby, Smalltalk and Class Variables - Pat Shaughnessy
Many of the ideas behind Ruby’s object model were developed for Smalltalk in the 1970s. A couple weeks ago an article by Ernie Miller got me interested in how class variables work in Ruby. After doing a bit of research, I found that class variables have been a perennial source of confusion. In fact, John Nunemaker wrote an article called Class and Instance Variables In Ruby way back in 2006 that s
How Ruby Borrowed a Decades Old Idea From Lisp - Pat Shaughnessy
This is the last of a series of free excerpts from an eBook I’m writing called Ruby Under a Microscope. I plan to finish the book and make it available for purchase and download from this web site before RubyConf 2012 on Nov. 1. You can still sign up here, if you haven’t already, to receive an email when the book is finished. I plan send that one, single email message out to everyone before Novemb
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