Re: Where is my bottleneck?

Hi Arnu,

Take a look at contrib/pg_buffers and contrib/pgstattuple also!!

Regards,
Guido. (dariussss)

On 1/25/06, Dario Brignardello <dbrignar(at)gmail(dot)com> wrote:
>
> Hi, Arnu,
>
>
> >
> > The parameters related with memory usage of postgresql.conf all are the
> > default values (I haven't changed any value in the postgresql.conf file)
>
> Well, there is actually plenty of room to optimize there, I would suggest
> to go to
> http://www.postgresql.org/docs/7.4/interactive/runtime-config.html#RUNTIME-CONFIG-RESOURCE
>
>
> and take a look, specially the values for shared_buffers and sort_mem
> should be higher (mind you, you also have to tune your kernel parameters or
> your engine will not start, so be careful :-) )
>
>
> > I know that I can tune my queries, but I think I could get more
> >performance from the hardware I have.
>
> Actually you can, but a bad query is always a bad
> query, even when runing on big iron, so you should be sure you
> are not wasting hw resources, specially if those are scarce :-)
>
>
> > My settings are, do I should change anything else?
> >
> > # - Query/Index Statistics Collector -
>
> > stats_start_collector = true
> > stats_command_string = true
> > #stats_block_level = false
> > stats_row_level = true
> > #stats_reset_on_server_start = true
>
> Take a look at the pg_stat_* views, to see what could be out off the way.
> To an explanation of the statistics views, check:
> http://www.postgresql.org/docs/7.4/interactive/monitoring-stats.html
>
> Hope it helps.
> Best regards
> Dario
>
>
> --
> Atte: Dario Brignardello
>
>

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