iOS 7 memory issues

Question

I was recently trying to make my iOS 6 compatible app work with iOS 7 (noted still in beta). So i had my boss install iOS 7 on his iPhone 4S. We noticed that camera picker was slow and not responsive, and when we take a picture everything freezes. When i run the profile with memory allocations i notice that we have a really high memory usage : 160 MB. and btw we received a loot of memory warnings. So i tried running on the iPhone that still has ios6 and the maximum memory spike was 16 MB. Has anyone encountered this problem? Thank you

Answer 1

I do observe different Memory numbers on iOS 6 & iOS 7. I have an app that makes use of openGL (a 3D viewer), and of AVFoundation (my own camera implementation, with AVCaptureDevice...)

I ran the app on iPhone 4S with iOS 6, and on iPhone 4 with iOS 7, my observations so far :

• Allocations, Dirty & resident VM sizes reported by Instruments seem higher on iOS 7 than iOS 6 (50% to 100% higher)

BUT

• I get much less Memory warning with iOS 7 (although I probably would have to repeat these tests to get more reliable results)