Re: Configuring Shared Buffers

The Postgres version is 8.3.3 and I am using Fedora Core 8.
I have in the actual server around 70 connections the same time. I am
assigning for this 100.

2008/6/30 Tino Schwarze <postgresql(at)tisc(dot)de>:

> On Mon, Jun 30, 2008 at 02:52:05PM -0300, Rafael Domiciano wrote:
>
> > Folks, I am configuring a new Postgres Server, that's gonna substitute
> the
> > critical server of the enterprise.
> > I have a good machine:
> > Quad-Core 2.5 Ghz
> > 4 Gb RAM
> > 1 Dedicated HD 300 Gb Sata for the PostgreSQL Directory
>
> If it's the "critical server", you'd want to use a RAID1 for the disk so
> your server and data survives a harddisk crash.
>
> > My question is:
> > How much I could assign for the "Shared Buffers" parameter?
> >
> > The default assigned now is 24 Mb.
>
> That's rather low. I suppose, you may safely say 200Mb here (check that
> you don't run into OS limits, they might need raising). You may also
> want to increase work_mem, but it depends on what the DB does, how many
> concurrent connections you have etc. pp. maintenance_work_mem may safely
> be set rather high - it speeds up vacuum etc. and is only used during
> such operations. Also look for effective_cache_size and max_fsm_pages.
>
> BTW: What version are you going to use?
>
> Tino.
>
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