Re: Degrading performance

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com>
Cc: Mindaugas Riauba <mind(at)bi(dot)lt>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Degrading performance
Date: 2003-06-02 17:25:22
Message-ID: 9538.1054574722@sss.pgh.pa.us
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"scott.marlowe" <scott(dot)marlowe(at)ihs(dot)com> writes:
> On Mon, 2 Jun 2003, Tom Lane wrote:
>>> INFO: Rel ifdata: Pages: 4887 --> 17; Tuple(s) moved: 776.
>>> CPU 0.30s/0.35u sec elapsed 1.65 sec.
>>
>> That says you waited way too long to vacuum --- over two hundred update
>> cycles, evidently.

> Don't forget to crank up your fsm settings in $PGDATA/postgresql.conf as
> well.

The table's not very big though. As long as he keeps after it with
sufficiently-frequent vacuuming, it won't need much FSM space.

regards, tom lane

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