On Mon, Oct 8, 2012 at 3:50 PM, Claudio Freire <klaussfreire@xxxxxxxxx> wrote:
On Mon, Oct 8, 2012 at 7:48 PM, Craig James <cjames@xxxxxxxxxxxxxx> wrote:
>> > # 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.
>
>
> But again ... the two systems are identical. This can't explain it.
Is the read-ahead the same in both systems?
Yes, as I said in the original reply (it got cut off from your reply): "Same on both servers."
Craig
