Stutter Observed With Galaxy S24 Devices

[ptc-pooja]

SPECIFIC ISSUE ENCOUNTERED

We are observing stutter issues with the new Samsung GS24 devices. Tried the computervision_c app on these devices and stutter is visibly more in comparison to GS23 ultra device. Seems to be an ARCore issue. The issue seems to be more on GS24 ultra and GS24 plus devices than on GS24 device.
All GS24 variants have same version of ARCore and are updated to the latest software update.

VERSIONS USED

• Android Studio: Android Studio Giraffe | 2022.3.1 Patch 2

• ARCore SDK for Android: https://github.com/google-ar/arcore-android-sdk/tree/master/samples/computervision_c

• Device manufacturer, model, and O/S:
  Samsung, SM-S928U1, Android version 14
  Samsung, SM-S926B, Android version 14
  Samsung, SM-S921U1, Android version 14

• Google Play Services for AR (ARCore):
  Packages:
  versionName=1.42.240360593
  Hidden system packages:
  versionName=0
  "# of packages: 1 / # of packages in DATA: 1 (3)"

• Output of adb shell getprop ro.build.fingerprint:
  GS24 ultra : samsung/e3quew/e3q:14/UP1A.231005.007/S928U1UES1AXBG:user/release-keys
  GS24 plus: samsung/e2sxxx/e2s:14/UP1A.231005.007/S926BXXS1AXBL:user/release-keys
  GS24: samsung/e1quew/e1q:14/UP1A.231005.007/S921U1UES1AXBG:user/release-keys

STEPS TO REPRODUCE THE ISSUE

1. Build the computervision_c app and install it on the above mentioned devices.
2. Launch the app and double tap on the screen to get the RGB mode and switch on autofocus.
3. Pan around slowly and observe the stuttering. Sometimes might need to continue for around 3-5 minutes to see the issue.

WORKAROUNDS (IF ANY)

ADDITIONAL COMMENTS

[kinjalbhavsar]

Hi, thanks for reporting this. It is weird that the same ARCore version and sample are behaving differently between S23 and S24. Can you please share the data points you have to determine this being an ARCore issue? For example do you have any profiling data that you can share - comparing the two device (S23 and S24) that shows increased resource usage on S24?

[ptc-pooja]

We can reproduce the issue in the computervision_c sample from ARCore as well as our App which rules out our App and points to a problem in ARCore.
We haven't done profiling but the issue is readily visible on the devices.