[调查]硬盘速度（有测试方法）

jronald

原帖由 platinum 于 2006-12-19 09:57 发表

恩，540MB 的，十二年前的古董 ^_^

那时候我的才108M，呵呵

colddawn

我也来一个：

# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads:   3032 MB in  2.00 seconds = 1515.47 MB/sec
Timing buffered disk reads:  248 MB in  3.01 seconds =  82.27 MB/sec

colddawn

ft，刚才是在系统负载2.X下测试的结果，这个才算正常：

# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads:   3212 MB in  2.00 seconds = 1606.24 MB/sec
Timing buffered disk reads:  380 MB in  3.01 seconds = 126.35 MB/sec

jronald

原帖由 colddawn 于 2006-12-19 11:28 发表
ft，刚才是在系统负载2.X下测试的结果，这个才算正常：

# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads:   3212 MB in  2.00 seconds = 1606.24 MB/sec
Timing buffered disk reads:  380 MB i ...

历害啊
有机会一定也搞一个

wwlovezz

[root@myroute ~]# hdparm -cdtT /dev/hda

/dev/hda:
IO_support   =  1 (32-bit)
using_dma    =  1 (on)
Timing cached reads:   1292 MB in  2.01 seconds = 644.17 MB/sec
Timing buffered disk reads:  168 MB in  3.03 seconds =  55.49 MB/sec

babyfrog

# hdparm -tT /dev/sda

/dev/sda:
Timing buffer-cache reads:   4036 MB in  2.00 seconds = 2018.00 MB/sec
Timing buffered disk reads:  168 MB in  3.00 seconds =  56.00 MB/sec

我的sata硬盘

jronald

原帖由 babyfrog 于 2006-12-20 09:14 发表
# hdparm -tT /dev/sda

/dev/sda:
Timing buffer-cache reads:   4036 MB in  2.00 seconds = 2018.00 MB/sec
Timing buffered disk reads:  168 MB in  3.00 seconds =  56.00 MB/sec

我的sata硬盘

这个cache强的

babyfrog

反复运行后略微有点提高

# hdparm -tT /dev/sda

/dev/sda:
Timing buffer-cache reads:   4216 MB in  2.00 seconds = 2108.00 MB/sec
Timing buffered disk reads:  170 MB in  3.03 seconds =  56.11 MB/sec

babyfrog

# hdparm -tT /dev/sda

/dev/sda:
Timing buffer-cache reads:   3860 MB in  2.00 seconds = 1930.00 MB/sec
Timing buffered disk reads:  238 MB in  3.01 seconds =  79.07 MB/sec

scsi的了

jronald

原帖由 babyfrog 于 2006-12-20 09:15 发表
反复运行后略微有点提高

# hdparm -tT /dev/sda

/dev/sda:
Timing buffer-cache reads:   4216 MB in  2.00 seconds = 2108.00 MB/sec
Timing buffered disk reads:  170 MB in  3.03 seconds =  56.11 ...

我运行了3次，提高有5M左右，汗。。。