Need to round to the nearest 30 minutes or up to the next 250 or some other fun rounding case? Ruby’s build-in
ceil won’t help you, but the Rounding gem will.
I recently gave a talk covering
pluck, and the PostgreSQL Cursor gem for the West Michigan Ruby Users Group.
Code to copy-paste so you can lazily serialize JSON and maybe even stream it to the client, and an argument for why we shouldn’t have to do any of this.
Some ways to reduce memory usage as you gather records out of your database into Rubyland.
Part one of a four-part series which will show you how to optimize a memory-heavy Rails API action.
Changing Ruby’s garbage collection parameters is the least invasive way to optimize your app’s memory usage.
By default, Ruby only rescues subclasses of StandardError to allow the really bad stuff to halt your program.
How much of a speed boost is the new Retina MacBook Pro’s Ivy Bridge i7? A lot–if you’re coming from a Core 2 Duo!