I love how many people are attaching to the "half-bounch" startup time metric. I used to do paid macOS dev ~20 years ago and most macOS devs I knew then used the bounce metric! Back then multiple bounces was the norm due to HDDs. One bounce really wasn't possible until SSDs. We've lost this obsession and its time to bring it back.
60
52
2,656
789,254
Replying to @mitchellh
Bounce count worked because it was the one benchmark users ran without being asked. Still is. What bothers me is where the SSD gains went. We got launch down to one bounce, then handed the whole budget to Electron and web views, and ended up back at multiple bounces on hardware that would have looked like a supercomputer in 2006. Same metric, same result, three hardware generations later. I don't think users got anything out of that trade.

Aug 29, 2026 · 4:30 PM UTC

3
746
Sort replies: Relevant Recent Liked