I am doing some basic bottleneck analysis on Kirin960 social with Unity URP demo(SSAA on, HDR Pipeline...).I run the demo on mate9, mate9 pro, honor9, nova 2s and all of these devices use Kirin 960 SOC.
But the fps is varies widely. mate 9 and mate 9 pro(Android 9) run the demo on 20 FPS and honor9(Android 8) and nova 2s(Android 9) are only 10FPS.
I use the Streamline to check the bottleneck, it shows a huge read stall rate on honor9 and all the devices have a huge write stall rate.
The following picture show the difference between mate 9(left, 20 fps) and honor 9(right, 10 fps).
GPU active shows that the frequencies of the two gpu are almost the same, with no throttling.
Mali Core L2 Memory Reads(load/store bytes) on Honor9 is 4 times the number on Mate 9.
It seems to be caused by L2 cache size or frequency? Is this guess reasonable? And How can I get the L2 cache size or frequency on Mali GPU?
One more question. I checked the ram size on the devices, the low fps devices have 4G Ram and high fps devices have 6G Ram. Will ram size affect the fps? I think the high latency is caused by more data requirement.Low fps devices do read more data from L2 cache and system memory than the high fps devices in the streamline and it does not make sense:"why low fps devices need more data than the high fps for the same demo?". They should have same L1 cache and L2 cache size.