Scott Marlowe wrote:
> With a 24 drive RAID-10 array that can read at ~1GB/s I am almost
> always CPU bound during copies. This isn't wholly bad as it leaves
> spare IO for the rest of the machine so regular work carries on just
> fine.
>
And you don't need nearly that much I/O bandwidth to reach that point.
I've hit being CPU bound on COPY...FROM on systems with far less drives
than 24.
--
Greg Smith 2ndQuadrant US greg@2ndQuadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
"PostgreSQL 9.0 High Performance": http://www.2ndQuadrant.com/books
