From: Tom Lane <tgl@sss.pgh.pa.us>
To: Ulrich Wisser <ulrich.wisser@relevanttraffic.se>
Cc: pgsql-performance@postgresql.org
Subject: Re: Need for speed
Date: Wed, 17 Aug 2005 10:52:48 -0400
Message-ID: <18975.1124290368@sss.pgh.pa.us> (raw)
In-Reply-To: <4303003B.3020407@relevanttraffic.se>
References: <Pine.LNX.4.44.0508162045480.2995-100000@zigo.dhs.org>
<4303003B.3020407@relevanttraffic.se>
Ulrich Wisser <ulrich.wisser@relevanttraffic.se> writes:
> My machine has 2GB memory, please find postgresql.conf below.
> max_fsm_pages = 50000 # min max_fsm_relations*16, 6 bytes each
FWIW, that index I've been groveling through in connection with your
other problem contains an astonishingly large amount of dead space ---
almost 50%. I suspect that you need a much larger max_fsm_pages
setting, and possibly more-frequent vacuuming, in order to keep a lid
on the amount of wasted space.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, ulrich.wisser@relevanttraffic.se
Subject: Re: Need for speed
In-Reply-To: <18975.1124290368@sss.pgh.pa.us>
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