Measure disk performance by fio
Installation of test
Download prebuilt binaries of test and required library
Copy them from PC into domd
scp fio_3.12-r0_aarch64.ipk root@${BOARD_IP}:/home/root/
scp libaio1_0.3.111-r0_aarch64.ipk root@${BOARD_IP}:/home/root/
If you want to copy files into domu (linux guest domain) - just add option -P 2024 before file name.
Connect to board by minicom or ssh and log into domain. Install test
opkg install libaio1_0.3.111-r0_aarch64.ipk
opkg install fio_3.12-r0_aarch64.ipk
Run test
For read test
fio --randrepeat=1 --direct=1 --gtod_reduce=1 --name=test --filename=random_read.fio --bs=4k --iodepth=64 --size=200M --readwrite=randread
For write test
fio --randrepeat=1 --direct=1 --gtod_reduce=1 --name=test --filename=random_read.fio --bs=4k --iodepth=64 --size=200M --readwrite=randwrite
In both cases you can change block size --bs to measure performance with different settings.