Hi Adonis,
wget is terrible tool for testing hard disk performance, since it is also
dependent on network performance.
In other words test hard disk and network performance separately.
A simple test of network performance:
wget ftp://<remove file> -O /dev/null
A simple test of hard disk performance:
dd if=/dev/zeero of=/path/to/mount/testfile.bin count=102400
or hdparm -t /dev/sda
Rune Petersen
Adonis Hong wrote:
> Hi guys,
>
> It is so shame to say sorry again, with the hint from Bob Vaughan, I have set
> the format to "Plain text" clearly,hope this time it works...
>
> I am a fresh guy with net5501. The BIOS version of my
> net5501 is 1.33c. I have created an ubuntu 8.04 system for my net5501 board,
> with this
> instruction:
> http://wiki.soekris.info/Installing_Ubuntu_7.04_Server_via_debootstrap
>
> My
> net5501 works with both transcend 8G 133x FlashCard and Westdigital 160GB
> sata
> hard-drive. However, the write performance in both cf-card and hard-drive is
> poor. I tried to use "wget" to do a simple performance test. The test content
> is:
> Transfer Protocol: FTP
> Transfer application: wget
> The other monitor
> application: top
> Transfer file information: a 1GB size file
> Server
> setting: no speed limitation.
>
> Test Result:
> Transfer speed:
> At very
> beginning 2-3 seconds, the speed is about 10MB/s, then, it just fall to
> 1-2MB/s.
> And during this whole progress, the speed is not stable (from 900KB/s to
> 6MB/s),
> the average speed for this progress is about 1.6MB/s.
> CPU Usage:
> no more
> than 5% (get by "top")
>
> At very beginning, I just used a trancend 8G 133x
> CF, and I considered that the poor performance come from the CF card.
> However,
> with the westdigital 160GB sata hard-disk, the performance is almost the
> same.
> I guess there are some problem with my net5501 or my operating
> system.
>
> Would you please help me to solve this issue. Thank you so
> much.
>
> Regards,
> Adonishong
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