Lee,
We all need to thanks Swami's great work. That is exactly Swami's patch.
I did not change any logic of it. I just add some code and let it can
run on Neuros
OSD 2.0 custom board. We currently work on git tree 2.6.23, So i ported it
to git 2.6.23. On our custom board, The performance is slightly
different between 2.6.23 and 2.6.25.
Lee, pls have a look at Swami's patch and test it using a HDD driver,
Good luck.
I thought if my testing method and result is ok, I will also make my
nightmare go away :)
Correct me if any wrong.
Thanks.
Frank
Ashuaria Lee wrote:
Hi Frank,
You results are amazing!
What kind of patch have you applied?
I'm still waiting for my USB-HDD to arrive.
I bet your patch will make my nightmare go away.
could I try it?
Best regards,
Ashuaria Lee
2008/6/3, Frank Xue <[EMAIL PROTECTED]>:
Swami, Lee,
I tested performance using 3 different USB devices (2 USB HDD and 1
USB Flash Disk).
Here is the performance test result.
Instructions for testing
----------------------------------
writing test:
time dd if=/dev/zero of=/mnt/test.gz bs=1M count=500 && sync
reading test:
time dd if=/mnt/test.gz of=/dev/null bs=1M && sync
Result:
Device Write Read
-----------------------------------------------------
USB HDD1 ~9.5MBps ~13.0MBps
USB HDD2 ~7.2MBps ~8.0MBps
USB FD ~3.8MBps ~9.0MB/s
It seems the performance is pretty good.
I made some minor changes and applied the patch to git 2.6.23, this patch
also works
well on git 2.6.23.
Regards
Frank
Ashuaria Lee wrote:
Hi Subbrathnam,
The only difference I feel is that I used a thumb USB Memory, which is
SanDisk cruzer micro 1.0GB, and you used USB HDD.
I can't understand Why? my read speed is so high, and why the write
speed so low.
I'll try the USB hdd when I get one.
Good Luck.
2008/5/31, Subbrathnam, Swaminathan <[EMAIL PROTECTED]>:
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