hdparm -Tt /dev/nvme0n1
/dev/nvme0n1:
Timing cached reads: 21212 MB in 1.99 seconds = 10641.20 MB/sec
Timing buffered disk reads: 5090 MB in 3.00 seconds = 1696.64 MB/sec
hdparm test disk drive
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hdparm -Tt /dev/nvme0n1
/dev/nvme0n1:
Timing cached reads: 21212 MB in 1.99 seconds = 10641.20 MB/sec
Timing buffered disk reads: 5090 MB in 3.00 seconds = 1696.64 MB/sec