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Running my app on the new simulator, a process called backboardd is causing very high CPU utilization.

I'm doing some animation via CADisplayLink (moving about 18 views at once), no OpenGLES running (as was discovered here).

The same problem is not apparent in Xcode < 9. Is this just another one of those issues where we sit tight -- potentially for years, see here -- while Apple fixes?

danh
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  • High CPU is very normal with simulator running. Simulating a faster-CPU phone tends to run slower than simulating older, slower phones. – drewster Sep 28 '17 at 15:25
  • @drewster Could you explain why simulating newer iphone is slower ? – Leszek Zarna Oct 02 '17 at 10:12
  • `backboardd` hosts the windowserver on iOS. If you can open a bug report with a sample application and some numbers comparing iOS 10 vs iOS 11 in the Simulator that would be very helpful. Please send me the radar # and I will take a look at it. – russbishop Oct 05 '17 at 05:36
  • Same problem here. Any one found a solution to this issue? – Edouard Barbier Feb 26 '18 at 07:56

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