廢話不多說,看實例:
[root@xmdb ~]# df -h
文件系統 容量 已用 可用 已用% 掛載點
/dev/sda3 221G 134G 76G 64% /
/dev/sda6 996M 34M 911M 4% /tmp
/dev/sda5 39G 14G 23G 38% /home
/dev/sda1 2.0G 49M 1.8G 3% /boot
tmpfs 3.9G 0 3.9G 0% /dev/shm
[root@xmdb ~]# hdparm -tT /dev/sda3
/dev/sda3:
Timing cached reads: 11828 MB in 2.00 seconds = 5926.28 MB/sec
Timing buffered disk reads: 302 MB in 3.01 seconds = 100.40 MB/sec