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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Thread: | |
Lists: | pgsql-performance |
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!
>
>
--
==================================================================
Achilleus Mantzios
S/W Engineer
IT dept
Dynacom Tankers Mngmt
Nikis 4, Glyfada
Athens 16610
Greece
tel: +30-210-8981112
fax: +30-210-8981877
email: achill at matrix dot gatewaynet dot com
mantzios at softlab dot ece dot ntua dot gr
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