On Thu, Jan 12, 2012 at 1:48 AM, Robert Haas <robertmh...@gmail.com> wrote:
> Just to whet your appetite, here are the top spinners on a 32-client > SELECT-only test on a 32-core Itanium server. All the locks not shown > below have two orders of magnitude less of a problem than these do. Please can you repeat the test, focusing on minutes 10-30 of a 30 minute test run. That removes much of the noise induced during cache priming. My suggested size of database is one that is 80% size of RAM, with shared_buffers set to 40% of RAM or 2GB whichever is higher. That represents the common case where people know how big their data is and purchase RAM accordingly, then set shared_buffers in line with current wisdom. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
