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Connection Management in ActiveRecord | Tenderlovemaking

http://raptureapp.com/2011/10/20/connection-management-in-activerecord.html

Connection Management in ActiveRecord. I am trying to be totally enthusiastic, but the truth is that I have a cold, so there will be fewer uppercase letters and exclamation points than usual. Anyway, I want to talk about database connection management in ActiveRecord. I am not too pleased with its current state of affairs. I would like to describe how ActiveRecord connection management works today, how I think it. Work, and steps towards fixing the current system. Thinking in terms of files. Our basic re...

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Mechanize 2.0.0 has been released! | Tenderlovemaking

http://raptureapp.com/2011/06/27/mechanize-2-0-0-has-been-releases.html

Mechanize 2.0.0 has been released! Thanks to @drbrain, mechanize 2.0.0 has been released! See the full announcement here. Laquo; go back.

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Profiling Rails startup with DTrace | Tenderlovemaking

http://raptureapp.com/2011/12/05/profiling-rails-startup-with-dtrace.html

Profiling Rails startup with DTrace. TL;DR: I’m adding DTrace probes to Ruby, and I used those to make a 6% performance improvement to. Lately I've been working on adding DTrace probes to Ruby 2.0. I am interested in using them to profile and improve rails startup time. Today I want to look at building a profiler with DTrace, finding slow method calls, and making some incremental improvements. All of these examples will be executing in the context of a Rails application built from Rails master. Command&#...

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Compiling with Clang | Tenderlovemaking

http://raptureapp.com/2010/01/03/compiling-with-clang.html

HI EVERYONE AND HAPPY SUNDAY! Lately I’ve been trying to compile my ruby extensions with Clang. One reason I like trying out my extensions with Clang is because it catches some errors that GCC doesn’t. If you know the right things to set, it’s pretty easy to get your extension to compile with Clang. Unfortunately finding the right thing isn’t always easy, but I found the right bits to flip and I want to share! Here’s how to do it. Add this line to your extconf.rb right after you require mkmf:.

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I want DTrace probes in Ruby | Tenderlovemaking

http://raptureapp.com/2011/06/29/i-want-dtrace-probes-in-ruby.html

I want DTrace probes in Ruby. Recently I was debugging a performance regression in Rails 3.1. The ticket reported for the regression just indicated a speed problem. Namely allocating new active record objects was. Slow in Rails 3.1 compared to Rails 3.0. Here is the program I was using for benchmarking. It's slightly modified from the original program that @paul so kindly submitted:. CREATE TABLE active record models (id INTEGER UNIQUE, title STRING, text STRING). Bm { x x.report( '. New } } }. Count obj...

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Writing Ruby C extensions: Part 1 | Tenderlovemaking

http://raptureapp.com/2009/12/18/writing-ruby-c-extensions-part-1.html

Writing Ruby C extensions: Part 1. Writing Ruby C extensions: Part 1. I like writing C extensions for Ruby. In this series of blog posts we're going to explore writing C extensions. I will cover topics including setting up the development environment, TDD, debugging techniques, dealing with Ruby's garbage collector, cross compiling for windows, and more. By the end of this series, we should end up with a Ruby C extension that wraps libstree. Libstree is a Suffix tree. Implementation written in C. We're g...

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RDoc on your iPad | Tenderlovemaking

http://raptureapp.com/2010/04/12/rdoc-on-your-ipad.html

RDoc on your iPad. I haven’t posted here in a long time. My day job. Have been keeping me too busy! Hopefully I’ll have more time to blog in the future. I have a bunch of ideas, I just need to find the time to write! Anyway, let’s talk RDoc. I like documentation. I especially like consuming documentation. I thought it would be neat if I could read documentation on my iPad. As it turns out, getting RDoc documentation on your iPad isn’t that hard! According to Wikipedia, iBooks is an EPUB reader. Then find...

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Ruby Advent Calendar | Tenderlovemaking

http://raptureapp.com/2010/12/09/ruby-advent-calendar.html

Every year Japanese Rubyists participate in what is called the Ruby Advent Calendar . What is the Ruby Advent Calendar? Each day leading up to December 25th, one person posts an article to their blog and adds a link to their blog on the Advent Calendar. So, 25 blog posts total. The posts can be about anything related to Ruby. In my opinion, the Ruby Advent Calendar. Is about encouraging people to blog about Ruby and help others participate in the Ruby community. How I can participate? And click the giant...

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Writing Ruby C Extensions: Part 2 | Tenderlovemaking

http://raptureapp.com/2010/12/11/writing-ruby-c-extensions-part-2.html

Writing Ruby C Extensions: Part 2. It's been a year since I posted Writing Ruby C Extensions: Part 1. The first post I did was for the Ruby Advent Calendar in 2009. I guess it's fitting that I write a blog post for the Ruby Advent Calendar 2010. Anyway, if you haven't read part 1, please go read it now. In Part 2, we'll modify our. File to find important files in. Then we'll create a Ruby class that is backed by a C structure. Using mkmf to find libraries. As I mentioned in the previous post. Finally fal...

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Rubyconf 2009 Slides | Tenderlovemaking

http://raptureapp.com/2009/12/07/rubyconf-2009-slides.html

I’ve posted the slides for the talk that Ryan and I gave. You can grab the pdf here. I’ve also put them on slideshare here. I replaced the videos in the slides with links to youtube. If you want to jump straight to the videos though, you can find them here. Laquo; go back.