测试磁盘的读写IO速度

(1)使用hdparm命令
[root@Lin-moniter ~]# hdparm -Tt /dev/hda1
/dev/hda1:
Timing cached reads:   22976 MB in  2.00 seconds = 11514.88 MB/sec
Timing buffered disk reads:  100 MB in  1.16 seconds =  85.84 MB/sec
(2)使用dd命令
[root@Lin-moniter ~]# dd if=/dev/zero of=/home/test11 bs=1024M count=1
1+0 records in
1+0 records out
1073741824 bytes (1.1 GB) copied, 14.1328 seconds, 76.0 MB/s