I have a few questions for you lucky M2 Ultra owners:
Has anyone benchmarked the SATA transfer rates on the M2 Ultra? Is it any faster than the SATA on the original BPi?
Is it possible to use all the hardware in the M2 ultra using a recent mainline kernel?
Does anyone know where I can buy one in the UK?
SATA-Speed looks like the same as BPi-M1. Some tests from me.
I searched a lot before I bought this board (M2U), but I didn’t get anything useful. I think maybe I can try it myself.
With Ubuntu minimal image and Micron Crucial MX100 SSD, I tried a lot of times with different test methods and different tweaks(without overclock). The final result is the average seq write and seq read via SATA on this board is 35MB/s and 130MB/s.
Maybe this can help you
SATA Speeds for m2u looks like this:
Timing cached reads: 1038 MB in 2.00 seconds = 519.16 MB/sec
Timing buffered disk reads: 344 MB in 3.00 seconds = 114.58 MB/sec
In real world writing speed is about 30MB/s even if using just dd
Performed the following test (3.10.65-BPI-M2U-Kernel) for 8GB:
“dd if=/dev/zero of=/mountpoint/sda bs=4M count=2048”
speed is 33MB/s