Hi

On 02/07/2013 11:12 AM, Adam Goryachev wrote:

Do you have any information on what your workload is, or how/why these
values might help?

Most of our data servers are exporting data read-only via NFS. It helped
well on these but more on download servers which allowed us to go from
200k 4MB downloads per day to 1M/day while adding new files constantly.

You are changing values significantly from the default, and I am
cautious that they may cause other issues. Also, someone else has
advised to reduce nr_requests rather than increasing it?

I know, but these larger queues really helped a lot in re-ordering
requests to better match the hardware underneath - but again, this was
for hard drives with physical arms and not SSDs

Cheers

Carsten

-- 
Dr. Carsten Aulbert - Max Planck Institute for Gravitational Physics
Callinstrasse 38, 30167 Hannover, Germany
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