JRuby Startup Time Tips
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all JRuby has become notorious among Ruby implementations for having a slow startup time. Some of this is the JVM's fault, since it doesn't save JIT products and often just takes a long time to boot and get going. Some of this is JRuby's fault, though we work very hard to eliminate startup bottlenecks once they're reported an
JRuby Finally Installs ruby-debug Gem
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all This should be a great Christmas present for many of you. After over three years, the "ruby-debug" gem finally installs properly on JRuby. ~/projects/jruby ➔ gem install ruby-debug Successfully installed ruby-debug-base-0.10.4-java Successfully installed ruby-debug-0.10.4 2 gems installed Back in 2007, folks working on Ne
My Thoughts on Oracle v Google
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all As you've probably heard by now, Oracle has decided to file suit against Google, claiming multiple counts of infringement against Java or JVM patents and copyrights they acquired when they assimilated Sun Microsystems this past year. Since I'm unlikely to keep my mouth shut about even trivial matters, something this big o
Finding Leaks in Ruby Apps with Eclipse Memory Analyzer
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all After my post on Browsing Memory the JRuby Way, one commenter and several other folks suggested I actually show using Eclipse MAT with JRuby. So without further ado... The Eclipse Memory Analyzer, like many Eclipse-based applications, starts up with a "for dummies" page linking to various actions. The most interesting use
Headius: Using Ivy with JRuby 1.5's Ant Integration
Saturday, April 03, 2010 Using Ivy with JRuby 1.5's Ant Integration JRuby 1.5 will be released soon, and one of the coolest new features is the integration of Ant support into Rake, the Ruby build tool. Tom Enebo wrote an article on the Rake/Ant integration for the Engine Yard blog, which has lots of examples of how to start migrating to Rake without leaving Ant behind. I'm not going to cover all
Ruby Summer of Code 2010
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all This year, no major Ruby organization got accepted to Google's Summer of Code (even though a half dozen Python projects got accepted, but I won't rant here). What do we as Rubyists do? Take it sitting down? NO! We make our own Summer of Code! Thanks to Engine Yard, Ruby Central, and the Rails team, Ruby Summer of Code has
Busy Week: JRuby with Android, Maven, Rake, C exts, and More!
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all (How long has it been since I last blogged? Answer: a long time. I'll try to blog more frequently now that the (TOTALLY INSANE) fall conference season is over. Remind me to never have three conferences in a month ever again.) Hello friends! It's been a busy week! I thought I'd show some of what's happening with JRuby, so
Duby: A Type-Inferred Ruby-Like JVM Language
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all It's been one of those nights, my friends! An outstanding night! All day Sunday I had the stupids. It was probably related to a few beers on Saturday night, or the couple glasses of red wine before that. Whatever it was, I didn't trust myself to work on any JRuby bugs for fear of introducing problems if my brain clicked o
Return of Ruboto!
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all It's been a while since I was able to work on JRuby's Android support, but tonight I managed to finally circle back. And I've got something much more impressive working today: a real IRB application! (And yes, this works just fine on the phone too) It turned out to be incredibly easy to get this working. I'm not using any
How JRuby Makes Ruby Fast
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all At least once a year there's a maelstrom of posts about a new Ruby implementation with stellar numbers. These numbers are usually based on very early experimental code, and they are rarely accompanied by information on compatibility. And of course we love to see crazy performance numbers, so many of us eat this stuff up.
Zero to Production in 15 Minutes
Charles Oliver Nutter Java, Ruby, and JVM guy trying to make sense of it all There still seems to be confusion about the relative simplicity or difficulty of deploying a Rails app using JRuby. Many folks still look around for the old tools and the old ways (Mongrel, generally), assuming that "all that app server stuff" is too complicated. I figured I'd post a quick walkthrough to show how easy it
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