Has anyone else noticed very "laggy" iOS simulator after the Xcode 8 update and/or after installing macOS Sierra?
Not that it matters much as simulator performance is irrelevant, i just find it a bit annoying.
David
Xcode 8 simulator performance
For future readers: this problem was fixed for me after updating to macOS Sierra 10.12.5 Beta
I was suffering from this issue as well on my iMac, but on my Mac mini with much lower specs it ran smoothly. For me the culprit was that 'Optimize Rendering for Window Scale' was turned off in the simulator menu under 'Debug'. Once I turned this on, simulator performance improved dramatically!
Edit: after a while the issue was back while 'Optimize for Window Scale' was still enabled. When I disabled and re-enabled this option the performance was fine again though.
I have the same problem on my macOS Sierra in iOS simulator(macOS Sierra,Xcode 8,iOS 10 simulator).
My company's iPhone and iPad devices is very limited so I must use iOS Simulator to test many UI and functions especially equipment compatibility with different dimensions.
But its laggy start speed give me a great disaster for debugging.😢😢😢
Have you find a way to make it fast for start speed?
I'm experiencing the same issue on Xcode 8 and Xcode 9 beta. I'm running on maxed out 2017 macbook pro. This is a bit dissapointing. Maybe someone managed to resolve this issue somehow?
I have this issue too, using the latest official XCode 9.0
I've got a MacBook Air (13-inch, Early 2014)
Processor 1,4 GHz Intel Core i5
Memory 4 GB 1600 MHz DDR3
Graphics Intel HD Graphics 5000 1536 MB
The simulator runs very jumpily but I have no problems running on an old 5s iPhone.
I've tried playing with debug options like changing Graphics Quality Override to low quality and switching the Optimise Rendering on and off but there's no improvement.