Adrian Suciu <adrian.suciu@xxxxxxxxxxxxxxxxxx> schrieb: > Hi everybody! > I ask you for your help on a problem I have. > I have a postgresql 7.4 running on a dual 4 GB RAM server, but I have some > VERY memory intense queries, that put processor up to 40%. I see all this > info in unix "top" command or ps -aux > Unfortunately they don't show me the query itsself. > > Is there a tool for postgres that can show me the queries and the time they > take and the amount of processor is consuming (as Oracle has) ? You can do some things: - set log_min_duration_statement = X to log all statments with a duration more than X ms. I'm not sure, if this possible with 7.4 - select * from pg_stat_activity; you should enable stats_command_string ;-) Now you can identify your expensive querys and anaylse this with EXPLAIN. 17:53 < akretschmer> ??explain 17:53 < rtfm_please> For information about explain 17:53 < rtfm_please> see http://techdocs.postgresql.org/oscon2005/robert.treat/OSCON_Explaining_Explain_Public.sxi 17:53 < rtfm_please> or http://www.postgresql.org/docs/current/static/sql-explain.html Read the links above to learn more about EXPLAIN. HTH, Andreas -- Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect. (Linus Torvalds) "If I was god, I would recompile penguin with --enable-fly." (unknow) Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
