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mruby 1.0 supports the Ruby 2.1 core API, but none of the standard library. As well as being able to execute most basic Ruby code, mruby also features a bytecode compiler and virtual machine, as well as the ability to be easily embedded and integrated into C or C++ code, in a similar manner to Lua or Tcl.
JRuby has been able to run the Ruby on Rails web framework since version 0.9 (May 2006), [11] [12] with the ability to execute RubyGems and WEBrick.Since the hiring of the two lead developers by Sun, Rails compatibility and speed have improved greatly.
Ruby code can programmatically modify, at runtime, aspects of its own structure that would be fixed in more rigid languages, such as class and method definitions. This sort of metaprogramming can be used to write more concise code and effectively extend the language.
YARV (Yet another Ruby VM) is a bytecode interpreter that was developed for the Ruby programming language by Koichi Sasada.The goal of the project was to greatly reduce the execution time of Ruby programs.
Rubinius is an alternative Ruby implementation created by Evan Phoenix. Based loosely on the Smalltalk -80 Blue Book design, [ 2 ] Rubinius seeks to "provide a rich, high-performance environment for running Ruby code."
It is known as Ruby 3x3 which means that programs would run three times faster in Ruby 3.0 comparing to Ruby 2.0. [41] and some had already implemented in intermediate releases on the road from 2 to 3. To achieve 3x3, Ruby 3 comes with MJIT, and later YJIT, Just-In-Time Compilers, to make programs faster, although they are described as ...
mod_ruby is a module that embeds the Ruby interpreter into the Apache web server to allow Ruby code to execute natively, faster than other CGI methods. Its drawback is that the characteristic sharing of classes among Apache processes is not safe for multiple applications [1] (e.g., multiple Ruby on Rails applications running simultaneously).
Many modern web servers can directly execute on-line scripting languages such as ASP, JSP, Perl, PHP and Ruby either by the web server itself or via extension modules (e.g. mod_perl or mod_php) to the webserver. For example, WebDNA includes its own embedded database system. Either form of scripting (i.e., CGI or direct execution) can be used to ...