Re: [GENERAL] postgres getting slow - Mailing list pgsql-general

From Brett W. McCoy
Subject Re: [GENERAL] postgres getting slow
Date
Msg-id Pine.LNX.4.04.9905140650440.28521-100000@dragosani.lan2wan.com
Whole thread Raw
In response to postgres getting slow  (Brian <signal@shreve.net>)
Responses Re: [GENERAL] postgres getting slow  (Brian <signal@shreve.net>)
List pgsql-general
> I noticed that on our postgres server, when more than say 15-20 backends
> are open at once, things start to get real slow.  System is:
>
> Redhat 5.2 Linux
> 2.2.8 kernel
> Postgres 6.3.2
> PII 450
> 256MB RAM
>
> Does anyone know why this may be?

Hmmm... I'm trying to optimize Postgres as much as I can right now.  I
usually have 4 or 5 backends running, some under CGI and some under ODBC.
I notice the ODBC (via Access) seems to monopolize the database,
especially when doing updates.

> Also I can't seem to get postgres to write to a log about what it is
> doing, whats the best way to get it to do this, so that any
> errors/warnings get logged?

I have something like this in my startup script appended to the invocation
of the postmaster ( as we discussed yesterday):

>> ${PGLOGFILE} 2>&1

where $PGLOGFILE is a path to postgres.log.

Brett W. McCoy
                                        http://www.lan2wan.com/~bmccoy/
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