Slow down on CPU: ARM Cortex-A53

[megajogos]

We have 2 problems with Androids with ARM Cortex-A53:

• Very slow comparing to other phones
• Using rederMode gpu movieclips with cacheAsBitmap or some blenderModes disapears at all

Known Workarounds

Using renderMode direct solves the problem with cacheAsBitmap or blenders but the FPS decreases a lot.

Using Adobe AIR 33.1.1.889

[FliplineStudios]

We've had the issue with GPU mode failing with cacheAsBitmap in all versions of AIR (at least as far back as AIR 30 from Adobe), also posted in this issue #103 a few years back.

At the time it seemed related to the devices' Mali GPU -- logcat would show a "[Mali] CMARP ERROR" when cacheAsBitmap failed -- but I see that all of the devices I listed that had the problem were also ARM Cortex A53 devices. Unfortunately there was never a solution for that issue, so in our own apps we've completely abandoned cacheAsBitmap due to it being unstable in GPU mode, and have had to manually create Bitmaps/BitmapData with draw commands for anything we would have previously cached.

I don't remember cold start time being noticeably different in our apps on those devices, though I've only published live apps through .743 at this point.