Re: Performance advice

From: Achilleus Mantzios <achill(at)matrix(dot)gatewaynet(dot)com>
To: Rod Taylor <rbt(at)rbt(dot)ca>
Cc: michael(dot)mattox(at)verideon(dot)com, Postgresql Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Performance advice
Date: 2003-06-25 16:32:43
Message-ID: Pine.LNX.4.44.0306251422260.5452-100000@matrix.gatewaynet.com
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I agree that a "directed graph"-like performance map
would be difficult to be written or understood.

What i think would be ideal (helpful/feasible)
is some kind of documentation of the algorithms involved
in the planner/optimizer, along with some pointers
to postgresql.conf parameters where applicable.

This way we will know
- Why something is happening
- If it is the best plan
- What tuning is possible

On 25 Jun 2003, Rod Taylor wrote:

>
> > I think the biggest area of confusion for me was that the various parameters
> > are very briefly described and no context is given for their parameters.
>
> > improvements to the performance sections of the documentation would make a
> > huge difference.
>
> Agreed.. Josh has done some work recently re-arranging things to make
> them easier to find, but the content hasn't changed much.
>
> Thanks for your thoughts!
>
>

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Achilleus Mantzios
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email: achill at matrix dot gatewaynet dot com
mantzios at softlab dot ece dot ntua dot gr

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