[Discuss] Why are all my hard drives slow on Ubuntu? (new computer)

[me at mattgillen.net (Matthew Gillen)]

On 08/29/2013 11:18 AM, Daniel Barrett wrote:
> I removed the RAID card entirely and just tested the Western Digital Red.
> Still slow.

The only other thing I can think of is that maybe there are some kernel 
command-line options that Ubuntu might set (for compatibility's sake) 
that force an old IDE mode (although admittedly I didn't see anything to 
indicate that in dmesg).

Can you
   cat /proc/cmdline
and post the results?  (feel free to scrub any UUID-looking things, 
those aren't relevant).

I'd also be curious to see the difference in /proc/cmdline with the 
Knoppix.

Matt