[Bug]: App is Lagging(scroll feels like it is stuck) on ForYouScreen and BookmarksScreen even with the release build and baseline profiles

[sunildhiman90]

Is there an existing issue for this?

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What happened?

A bug happened!

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[keyboardsurfer]

Thanks. While we'd like to address the issue you faced we are missing key information on how to reproduce the issue.
To get started, please let me know if you used a debug or release build.
Also, please attach relevant logs from adb logcat when you're reproducing this issue.

[sunildhiman90]

Hi Thanks for reply, Actually i am using demo release build, And you can reproduce it every time by scrolling after selecting some authors on home screen, then that scrolling is not smooth on For You Screen and Saved Screen(after saving some items) , it stucks in between while scrolling

My device Model is Samsung
Model name: Galaxy M31
Model Number: SM-M315F/DS
Android Version: 12

Following are the attached logs while i was scrolling:
now_in_android_logs.txt

[keyboardsurfer]

Thanks! I found several reports of jank in the forYou section.

16:09:20.037  V  FrameData(frameStartNanos=15829427875822, frameDurationUiNanos=199191855, frameDurationCpuNanos=203876125, frameOverrunNanos=197468343, isJank=true, states=[forYou:feed: Scrolling=true, Navigation: for_you_route])
16:09:20.050  V  FrameData(frameStartNanos=15829627067677, frameDurationUiNanos=195526156, frameDurationCpuNanos=198859771, frameOverrunNanos=174146208, isJank=true, states=[forYou:feed: Scrolling=true, Navigation: for_you_route])
16:09:22.036  V  FrameData(frameStartNanos=15831465736121, frameDurationUiNanos=175238285, frameDurationCpuNanos=178293054, frameOverrunNanos=145149415, isJank=true, states=[forYou:TopicSelection: Scrolling=true, Navigation: for_you_route]
16:09:22.242  V  FrameData(frameStartNanos=15831699573219, frameDurationUiNanos=128801534, frameDurationCpuNanos=137903919, frameOverrunNanos=128206214, isJank=true, states=[forYou:TopicSelection: Scrolling=true, Navigation: for_you_route])
16:09:26.330  V  FrameData(frameStartNanos=15835891911868, frameDurationUiNanos=34353651, frameDurationCpuNanos=38311689, frameOverrunNanos=29789254, isJank=true, states=[forYou:feed: Scrolling=true, Navigation: for_you_route])

[keyboardsurfer]

Added more Jank tracking in #328. We'll have to continue investigating here.