Re: First set of OSDL Shared Mem scalability results, some
Greg Stark <gsstark@mit.edu>
From: Greg Stark <gsstark@mit.edu>
To: Jan Wieck <JanWieck@Yahoo.com>
Cc: Greg Stark <gsstark@mit.edu>, Christopher Browne <cbbrowne@acm.org>, pgsql-performance@postgresql.org
Date: 2004-10-14T04:22:40Z
Lists: pgsql-hackers, pgsql-performance
Jan Wieck <JanWieck@Yahoo.com> writes: > Which would require that shared memory is not allowed to be swapped out, and > that is allowed in Linux by default IIRC, not to completely distort the entire > test. Well if it's getting swapped out then it's clearly not being used effectively. There are APIs to bar swapping out pages and the tests could be run without swap. I suggested it only as an experiment though, there are lots of details between here and having it be a good configuration for production use. -- greg