Horribly slow fps on galaxy s8

[parthdarji]

As stupid as it might sound, we are getting incrementally worse performance for our GearVR app on Samsung Galaxy devices. s6 performs the best at ~60fps, s7 at ~57-60 and s8 at ~25-30. We've tried unity versions 5.6.0f3 and 5.5.1f1 with similar results. We have also tried Oculus Utilities v1.13.0 and v1.14.0. Has anyone else faced similar issues?

The profiler shows substantially high amount of time for Camera.Render for s8(~12ms) than s7(~3-4fps).

/parth

[Cywil]

@JianZ

Hi JianZ. I can confirm that Unity 5.4.5p4 resolves issue with perfomance on Snapdragon devices (in my case S7). It isn't so good like on Exynos but definitly better than before (5.4.5f1). Unfortunately I'm considerating update to 5.6.3 (because of new NetworkTransport implementation) but after tests i supposed that perfomance problem is not resolved in that version.

Do you (or anyone else here) have any information about it or can confirm problems with 5.6? @stevehinan ?

Best, Cywil

[Cywil]

//Edit: Duplicated post.

[JianZ]

Hey @Cywil

the problem we were talking about here is for Qualcomm chip S8, which was fixed in 5.6.1p3. If you have performance issue on S7, can you create a separated thread and provide detail repro info? As always, a repro project will be really helpful, thank you

[Cywil]

@JianZ
I will test meantime and let know if found something. Anyway we had always performance issues on S7 with Qualcomm (noticeable especially in VR) and seems like 5.4.5p4 works a bit better with it.

[Anonymous]

Hi @JianZ 

I have a Qualcomm S8 here for testing and I'm still having performance issues when building from 5.6.1p3. I am using Easy Movie Texture to render 360 videos and it's really Jaggy. Even the normal 3D scenes do not perform well. Is there some combination of build settings that are affecting the performance. Or does this issue still exist?

[JianZ]

Hey @kchabera

5.6.1p3 should have the fix. To be noted, the problem we are talking about here is for Qualcomm S8 only, which means your app runs on Qualcomm s7 well but not on S8.

if your app runs poor on both S7 and S8, that could be other issue or general optimization problem, please create a new thread for discussion 

if the problem is indeed only on S8 Qualcomm , a repro project will help a lot

thanks

[Anonymous]

Thanks @JianZ

The issue is only happening on the S8 and not on the S7 or S6. I don't have an S8+ to test with but due to it having the same chipset I imagine it is also affected? Can anyone confirm this?

Here is a link to the Repro project https://au.awp.autotask.net/5/filelink/4003a-16558193-e2f5c8fc2d-2
Another thing I'm curious about, if you disable everything other than the camera Object, why is the frame rate only able to hit ~45pfs in an empty scene. Is this something to do with Asynchronous Time Warp?

Thank you so much for your time and help with this issue.