On Mon, Oct 8, 2012 at 7:25 PM, Craig James <cjames@emolecules.com> wrote:
>> > But why? What have I overlooked?
>>
>> Do you have readahead properly set up on the new one?
>
>
> # blockdev --getra /dev/sdb1
> 256
It's probably this. 256 is way too low to saturate your I/O system.
Pump it up. I've found 8192 works nice for a system I have, 32000 I
guess could work too.
