On Mon, Oct 8, 2012 at 7:48 PM, Craig James <cjames@emolecules.com> 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."
