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Android apps are sluggish on DM8168 with ICS 4.0.3

Video Guy
Prodigy 10 points

We have custom board based on Netra (i.e DM8168) running Android 4.0.3. I believe it is Devkit 3.0.1 from here.

We have an app that is rendering 25+ frames per sec at 1080p resolution. There is perceptible lag and we belie it is rendered at 10-15 fps.

When we measured times at various api points in Android platform, we found that eglSwapBuffer call in surfaceflinger blocks for 45-50ms consistently.

I started a discussion on Imagination forum about this.

Please check http://forum.imgtec.com/discussion/3191/eglswapbuffer-is-slow-on-sgx-530#latest

I have PVRT and PVRTUNE files uploaded. Please check the above discussion.

Joe at imagination suggests that composition bypass in surfaceflinger could help with this issue.


I don't know what that is. If it is HW composer module, I know it is disabled as TI doesn't have support for it.

I appreciate your help.

Thanks