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Re: PostgreSQL Configuration Tool for Dummies

From: Ray Stell <stellr(at)cns(dot)vt(dot)edu>
To: Y Sidhu <ysidhu(at)gmail(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: PostgreSQL Configuration Tool for Dummies
Date: 2007-06-19 20:09:14
Message-ID: 20070619200914.GE16830@cns.vt.edu (view raw or flat)
Thread:
Lists: pgsql-performance
On Tue, Jun 19, 2007 at 10:49:01AM -0700, Y Sidhu wrote:
> On 6/19/07, Francisco Reyes <lists(at)stringsutils(dot)com> wrote:
> >
> >Campbell, Lance writes:
> >
> >> Francisco and Richard,
> >> Why ask about disk or raid?  How would that impact any settings in
> >> postgresql.conf?
> >
> >If the user has 2 disks and says that he will do a lot of updates he could
> >put pg_xlog in the second disk.
> >
> >
> >---------------------------(end of broadcast)---------------------------
> >TIP 2: Don't 'kill -9' the postmaster
> >
> 
> Let's not ask about disk or raid at this level of sanity tuning. It is
> important for a newbie to take the right first step. When it comes to disks,
> we start talking I/O, SATA, SCSI and the varying degrees of SATA and SCSI,
> and controller cards. Then we throw in RAID and the different levels
> therein. Add to that, we can talk about drivers controlling these drives and
> which OS is faster, more stable, etc. As you can see, a newbie would get
> drowned. So, please keep it simple. I know many people on this list are
> Gurus. We know you are the best in this field, but we are not and are just
> trying to improve what we have.



Ignoring the i/o subsystem in db configuration, there's an idea.

You could request some bonnie++ output (easy to aquire) as a baseline, 
do your magic analysis based on this, and skip it if it is not provided
with a warning.  Course the magic may be harder to come by. 

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