increasing max_fsm_pages.

From: "Gourish Singbal" <gourish(at)gmail(dot)com>
To: "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>
Subject: increasing max_fsm_pages.
Date: 2006-05-15 06:48:50
Message-ID: 674d1f8a0605142348nf3dce9bl69d5f1896444ad4f@mail.gmail.com
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Need some help in understanding the tuning parameter.

we got the below message on database wide vacuuming :-
Vacuuming Result outcome on Sun May 14 20:22:47 PDT 2006 :-
INFO: free space map contains 195236 pages in 72 relations
DETAIL: A total of 200000 page slots are in use (including overhead).
201744 page slots are required to track all free space.
Current limits are: 200000 page slots, 500 relations, using 1226 KB.
NOTICE: number of page slots needed (201744) exceeds max_fsm_pages (200000)
HINT: Consider increasing the configuration parameter "max_fsm_pages" to a
value over 201744.
VACUUM

We have 4 GB of RAM on the machine if we increase the max_fsm_pages to
300000 will the database performance be at stake ?.

http://www.varlena.com/GeneralBits/Tidbits/perf.html#maxfsmp

--
Best,
Gourish Singbal

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