Rolf’s NYC

Cool-looking German restaurant for next time I’m in New York City.

Software Dev

Simple iOS Performance Tips

A former  engineer gives us “a checklist of performance tips that would hopefully give you the biggest bang for your buck.”

I have noticed that there was a pattern of low-hanging fruits, where you could make 80% of the performance gains in 20% of the time.

👉 iOS Performance tips you probably didn’t know (from an ex-Apple engineer)

Cheat sheet:

  • UILabel costs more than than you think
  • Always start with serial queues, and only use concurrent queues as a last resort
  • Some system components will only free up memory when they receive a memory warning
  • Avoid using dispatch_semaphore_t to wait for asynchronous work
  • Don’t use UIView tags

Via iOS Dev Weekly.



Our new song started out as a 60’s party song, then it sounded kind of like that “Woo hoo!” song by Blur, finally settling into a much slower and more satisfying rip on “Sweet Jane” (Cowboy Junkies versión). 🎸🥁 We need lyrics, but how can we match the beauty of “Sweet Jane”…? 😢 #music #drums #art #blue #austin #texas #atx #cowboyjunkies #portraitmode #shotoniphone via Instagram