Showing µC workload (2 replies)

Hello,
I'm planning to connect this 4.0inch SPI Module ST7796 to my printer.
My SKR2 has a stm32f429vgt6. Is that µC powerful enough to do the task and still working reliable to control the printer?
I would like to watch the workload of the µC. Does anybody know, if marlin can show that?

Is there anybody here, who has experience with those displays used with marlin?

Thanks in advance.
hcet14