hdparm -Tt /dev/sdb1

/dev/sdb1:
 Timing cached reads:   12618 MB in  2.00 seconds = 6314.13 MB/sec
 Timing buffered disk reads: 1128 MB in  3.01 seconds = 374.80 MB/sec

Generated by Ricardo Wurmus using scpaste at Mon Dec 13 09:12:50 2021. UTC. (original)