hdparm - Linux硬碟測試讀寫速度

sudo apt-get install hdparm

sudo hdparm -Tt /dev/sdX

sudo hdparm -t --direct /dev/sdX

Timing cached reads:   3164 MB in  2.00 seconds = 1582.31 MB/sec
Timing buffered disk reads: 238 MB in  3.01 seconds =  79.08 MB/sec