[Ubuntu]hdparm 參數 硬碟速度

root@pc-desktop:/home/bbs/bin# hdparm -Tt /dev/sdb



/dev/sdb:

 Timing cached reads:   844 MB in  2.00 seconds = 422.02 MB/sec

 Timing buffered disk reads:   40 MB in  3.00 seconds =  13.33 MB/sec

root@pc-desktop:/home/bbs/bin# hdparm -Tt /dev/sda



/dev/sda:

 Timing cached reads:   860 MB in  2.00 seconds = 430.08 MB/sec

 Timing buffered disk reads:   58 MB in  3.02 seconds =  19.21 MB/sec