Using Pow when developing Rails applications on OSX

I heard about Pow a while ago which is “a zero-config Rack server for Mac OS X” but never got around to giving it a go. I’ve just installed it and can instantly see that it is going to make developing with Rails (or any Rack app) a whole lot nicer, especially when dealing with apps that use subdomain account keys.

If you’ve not tried it yet, head over to the Pow website and get it installed with:

curl get.pow.cx | sh

Happy new year everyone!

Ruby Causing MacBook Pro to Run Hot

The past couple of days the fan on my MacBook Pro has been constantly on and battery usage down to around a third. Launching Activity Monitor, it showed 3 Ruby processes all at 100% CPU usage. The solution was to force quit these processes and within seconds, the fan slowed up and the battery indicator went up. Force quitting these processes didn’t affect anything I was doing with Rails or IRB so I guess they were just stray processes.

If anyone else gets the same problem, just launch Activity Monitor which lives in the /Applications/Utilities folder, click the CPU tab if not already selected, select processes with a process name of “ruby”, click “Quit Process” and then select “Force Quit”. Just selecting “Quit” wouldn’t work for me hence the “Force Quit”.

I hope this saves someone else the head-scratching as to why their Mac is running hot.