On 7/8/2010 1:47 PM, Ryan Wexler wrote:
Thanks for the explanations that makes things clearer. It still amazes me that it would account for a 5x change in IO.
The buffering allows decoupling of the write rate from the disk rotation speed. Disks don't spin that fast, at least not relative to the speed the CPU is running at.
-- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance