[PERFORM] Postgresql 8.4 optimize for heavy select load

2016-09-19 Thread Job
Hello, i would please like to have some suggestions to optimize Postgres 8.4 for a very heavy number of select (with join) queries. The queries read data, very rarely they write. Thank you! Francesco -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes

[PERFORM] Strong slowdown on huge tables

2012-05-29 Thread Job
Hello, i use PostgreSQL 8.4.8 on Centos 5.x and i have some table where i load with pg_bulkload webtraffic logs, every day. After loading new data, i delete with a query 30-days older logs. Autovacuum is on. In some systems, i experience a very huge slowdown of this table in queries, expecially