[命令] Linux 命令 hdparm （测试硬盘读取速度）

 # hdparm -Ttv /dev/sda

/dev/sda:
 multcount     = 128 (on)
 IO_support    =  1 (32-bit)
 readonly      =  0 (off)
 readahead     = 1024 (on)
 geometry      = 8354/255/63, sectors = 134217728, start = 0
 Timing cached reads:   7304 MB in  2.00 seconds = 3658.90 MB/sec
 Timing buffered disk reads: 612 MB in  3.01 seconds = 203.07 MB/sec

（补充：这里以测试 /dev/sda 硬盘的读取速度为例）