[调查]硬盘速度（有测试方法）

ttvast

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

[root@www ~]# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads:   15668 MB in  2.00 seconds = 7835.19 MB/sec
Timing buffered disk reads:  230 MB in  3.00 seconds =  76.65 MB/sec
[root@www ~]# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads:   11684 MB in  2.00 seconds = 5842.89 MB/sec
Timing buffered disk reads:  232 MB in  3.02 seconds =  76.88 MB/sec
也是SATA,有点晕,
BTW,好久不见,

ericzb

笔记本的硬盘，比较慢
/dev/hda:
IO_support   =  0 (default 16-bit)
using_dma    =  1 (on)
Timing cached reads:   2592 MB in  2.00 seconds = 1294.90 MB/sec
Timing buffered disk reads:  104 MB in  3.03 seconds =  34.28 MB/sec
eric@eric-laptop:~$

oydl82

oydl82@oydl82-computer:~$ sudo hdparm -cdtT /dev/hda
Password:

/dev/hda:
IO_support   =  0 (default 16-bit)
using_dma    =  1 (on)
Timing cached reads:   1140 MB in  2.00 seconds = 569.96 MB/sec
Timing buffered disk reads:   28 MB in  3.02 seconds =   9.28 MB/sec
oydl82@oydl82-computer:~$ sudo hdparm -cdtT /dev/hda

/dev/hda:
IO_support   =  0 (default 16-bit)
using_dma    =  1 (on)
Timing cached reads:   1132 MB in  2.00 seconds = 565.96 MB/sec
Timing buffered disk reads:   36 MB in  3.00 seconds =  11.98 MB/sec
oydl82@oydl82-computer:~$ sudo hdparm -cdtT /dev/hda

/dev/hda:
IO_support   =  0 (default 16-bit)
using_dma    =  1 (on)
Timing cached reads:   1180 MB in  2.00 seconds = 589.96 MB/sec
Timing buffered disk reads:   58 MB in  3.15 seconds =  18.42 MB/sec
oydl82@oydl82-computer:~$

sniper

这是Raid 10

/dev/sda:
Timing buffer-cache reads:   4216 MB in  2.00 seconds = 2106.21 MB/sec
Timing buffered disk reads:  278 MB in  3.02 seconds =  92.19 MB/sec

这是PC服务器上的SATA硬盘

/dev/sda:
Timing cached reads:   1364 MB in  2.00 seconds = 681.42 MB/sec
Timing buffered disk reads:  170 MB in  3.00 seconds =  56.66 MB/sec

还是pc机，IDE硬盘

/dev/hda:
Timing cached reads:   1584 MB in  2.00 seconds = 790.93 MB/sec
Timing buffered disk reads:   84 MB in  3.04 seconds =  27.63 MB/sec

heidern

heidern@heidern-laptop:~/Desktop/share$ uname -a
Linux heidern-laptop 2.6.15-27-386 #1 PREEMPT Fri Dec 8 17:51:56 UTC 2006 i686 GNU/Linux
heidern@heidern-laptop:~/Desktop/share$ sudo hdparm -cdtT /dev/sda

/dev/sda:
IO_support   =  0 (default 16-bit)
Timing cached reads:   2924 MB in  2.00 seconds = 1461.91 MB/sec
Timing buffered disk reads:  114 MB in  3.03 seconds =  37.60 MB/sec

donetx

sata:seagate 7200.10

1. 
   
2. [root@proxy ~]# hdparm -tT /dev/sda
   
3. 
   
4. /dev/sda:
   
5. Timing cached reads:   3808 MB in  2.00 seconds = 1904.29 MB/sec
   
6. Timing buffered disk reads:  218 MB in  3.01 seconds =  72.34 MB/sec
   
7. [root@proxy ~]# cat /proc/version
   
8. Linux version 2.6.9-42.ELsmp (buildcentos@build-i386) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Sat Aug 12 09:39:11 CDT 2006
   

复制代码

manpo

[root@works ~]# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads:   3636 MB in  2.00 seconds = 1817.37 MB/sec
Timing buffered disk reads:  368 MB in  3.00 seconds = 122.52 MB/sec

hongfengyue

hdparm -cdtT /dev/hda

/dev/hda:
IO_support   =  0 (default 16-bit)
using_dma    =  1 (on)
Timing cached reads:   2476 MB in  2.00 seconds = 1238.38 MB/sec
Timing buffered disk reads:  110 MB in  3.01 seconds =  36.59 MB/sec

5day

sudo hdparm -cdtT /dev/hdb
Password:

/dev/hdb:
IO_support   =  1 (32-bit)
using_dma    =  1 (on)
Timing cached reads:   1780 MB in  2.00 seconds = 889.16 MB/sec
Timing buffered disk reads:  150 MB in  3.02 seconds =  49.59 MB/sec

ssffzz1

看了这么多，大家认为这主要和什么关系比较大，硬盘转速、缓存、数据线、CPU、内存、主板、硬盘控制芯片，是否双硬盘。