Ruby DTrace Probes in Leopard
Posted by Sam
There are a ton of new features in the upcoming release of Mac OS X code named Leopard, but there are a couple of features that I find pretty exciting and interesting but haven't seen mentioned elsewhere. The first is that Apple added DTrace probes to their version of Ruby. See the official page here. These probes were available on Solaris for a while thanks to Joyent, but I didn't realize Apple was including them in Leopard.
The second interesting feature (interesting to developers at least) is an app called Instruments. You can use DTrace probes to see exactly what is happening inside your Rails app while also seeing exactly what affect it's having on your system. It's got a great gui that I think will extremely useful for tracking down performance problems.
Mac OS X was already the platform of choice for Ruby on Rails developers but now it's even better. Apple is doing a great job of picking the best technology available and tying it into their OS. Now the only thing I'm waiting for is full ZFS support! For me it's Solaris on the servers and OS X on the clients. This combination will take over the world. Mark my words.
Tags: macosx dtrace rubyonrails