Torsten Schulz wrote:

Yes, I know: very difficult question, but I don't know what to do now.

Our Server:
Dual-CPU with 1.2 GHz
1.5 GB RAM

Our Problem: We are a Community. Between 19 and 21 o clock we have >350 User in the Community. But then, the Database are very slow. And we have per CPU ~20-30% idle-time.

May we know the postgres version that you are running and see the query that run slow ? Is also usefull take a look at your postgresql configuration. You can see doing select * from pg_stat_activity the queries that are currently running on your server, and do a explain analize on it to see which one is the bottleneck. If you are running the 7.4 you can see on the log the total ammount for each query.

Let us know.

Regards Gaetano Mendola

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