linux下测试硬盘等存储设备可以用hdparm命令,我的redhat linux上测试如下:
[root@34514vps ~]# hdparm -tT /dev/sda2

/dev/sda2:
Timing cached reads: 10448 MB in 1.99 seconds = 5238.26 MB/sec
Timing buffered disk reads: 1592 MB in 3.00 seconds = 530.66 MB/sec
[root@34514vps ~]# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 9930 MB in 1.99 seconds = 4977.50 MB/sec
Timing buffered disk reads: 216 MB in 3.03 seconds = 71.35 MB/sec
[root@34514vps ~]#
第一行显示的为硬盘cache的读写速率,速度较快!

此外执行hdparm命令是需要root权限的!



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