6 Replies Latest reply: Sep 11, 2014 3:47 AM by Govind@adobe

Slows down and crashes on iOS

kaveri2 Aug 25, 2014 5:05 AM

I'm sorry that I haven't debugged further. I hope you are aware of performance issues regarding AIR 15 beta on iOS. I'm using the 20th of August version. The app works fine on simulator (except visual artifacts on bitmaps) and on Android. On iOS it's reported to be very slow and crashes in a situation, which I can't think of being special.

Using GPU renderMode, timeline animations with plenty of bitmaps.

1. Re: Slows down and crashes on iOS

Colin Holgate Aug 25, 2014 5:12 AM (in response to kaveri2)

You cannot get away with GPU mode and a timeline animation where every frame is different. If you are animating symbols, where the symbol is the same one from frame to frame, then it should work. But if the scene is constantly changing, the GPU memory gets filled up quickly, and AIR is having to replace those textures with new ones.

If the area of the screen that is animating is small enough, and if you're just doing 24 fps, Direct mode can give good enough performance, without the GPU memory issues. Even then, iPad Retina may not perform well enough, but there's a way to exclude iPad 3 from the High quality mode, and then the performance is better.
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2. Re: Slows down and crashes on iOS

kaveri2 Aug 25, 2014 5:18 AM (in response to Colin Holgate)

The animations are quite optimized, so it's not that. Everything runs fine with AIR 14 or AIR 15 on Android, with old hardware. I try to dig deeper into this when I have more time.
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3. Re: Slows down and crashes on iOS

kaveri2 Sep 10, 2014 1:12 PM (in response to kaveri2)

I know this is no longer beta, but just to let you know that official AIR 15 version fixed some issues, not all. The rest were got fixed with "-useLegacyAOT yes". So it has something to do with the packaging the app in a wrong way. The places where the app crashed the most used MovieClips on timeline.
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4. Re: Slows down and crashes on iOS

Govind@adobe Sep 10, 2014 9:56 PM (in response to kaveri2)

Hi,

Thanks for reporting the issue. Could you please send a sample app to govindag@adobe.com ?

Thanks
Govinda Gupta
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5. Re: Slows down and crashes on iOS

kaveri2 Sep 10, 2014 11:15 PM (in response to Govind@adobe)

Thanks for replying. Unfortunately our app is a monolith and the bug affects parts of it, which are difficult to separate. I can give you the undocumented project files or I can try to reproduce the bug in a test project. I believe the bug is somehow related to having multiple MovieClip subclass definitions on different SWC files, and instantiating them on timeline.
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6. Re: Slows down and crashes on iOS

Govind@adobe Sep 11, 2014 3:47 AM (in response to kaveri2)

Hi,

It would be helpful to have project file with action script code. Please send the data to my email id govindag@adobe.com<mailto:govindag@adobe.com>.

Thanks
Govinda Gupta
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