Steve White wrote: > This is a Samsung NC20. The goal is to use this machine for occasional > testing of a database, but to keep its power consumption minimal. > > Intel powertop reports the second biggest cause of wakeups (after the > network device ath) is postgres: > > Top causes for wakeups > 23.6% ( 11.7)D postgres > > This is with a cleanly installed database, not being accessed at all.
Try raising autovacuum_naptime (or disabling autovac altogether). There are other background processes that wake up with some frequency; I think bgwriter_delay and wal_writer_delay could be increased as well. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
