Self Built AOSP T is very choppy in performance compared to released build

VIM3
1

Which Khadas SBC do you use?

VIM3

Which system do you use? Android, Ubuntu, OOWOW or others?

Android T

Which version of system do you use? Khadas official images, self built images, or others?

Khadas official & self built

Please describe your issue below:

`I build AOSP T from official guide here - রেফারেন্স বোর্ড ব্যবহার করে  |  Android Open Source Project

However all the builds I made either be yukawa-userdebug or yukawa-eng - all have performance issues like stuttering on screen. No matter which kernel I paired it with, 5.4, 5.10 or 5.15.

However, the official Khadas built image is very smooth. Eg here:
https://dl.khadas.com/firmware/VIM3/Android/VIM3_T_AOSP_V211126.tar.xz

Anyone has ideas on how can I debug the perf issues on my own build?
`

Post a console log of your issue below:


no issues on console log, just performance issue in homescreen.
2

I also experienced problems with this.

3

From my conversation w/ AOSP maintainer, he mentioned that Khadas’ build may have used original Amlogic BSP and may have been maintained separately. I dont know where that specifically - is that in Kernel or was it in AOSP tree (separately maintained)?

I dont want to overstayed my welcome by asking more questions; for now, maybe perhaps there is another kernel tree (other than published hikey-linaro source)

https://android.googlesource.com/kernel/hikey-linaro

He also suggested that try building for VIM3L target as he mentioned he didnt see issues w/ that specific build target. I have yet to try. Would love to know what you find as well.