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0e1f616
(Get the code!)
sudo hdparm -tT /dev/sdb
/dev/sdb:
Timing cached reads: 616 MB in 2.01 seconds = 307.18 MB/sec
Timing buffered disk reads: 46 MB in 3.08 seconds = 14.94 MB/sec
This is after doing it on the disk device rather than on the partition device. Not much of a difference.