From: dforum <dforums@vieonet.com>
To: Scott Marlowe <scott.marlowe@gmail.com>
Cc: Loic Petit <tls.wydd@free.fr>
Cc: max@nts.biz.ua
Cc: pgsql-performance@postgresql.org
Subject: Re: Large number of tables slow insert
Date: Sun, 24 Aug 2008 16:31:14 +0200
Message-ID: <48B170B2.9000401@vieonet.com> (raw)
In-Reply-To: <dcc563d10808231818l4ad52e58k6b29ba92d6bc51e4@mail.gmail.com>
References: <1775c5ea0808231759x6b43520du4f949dbe25f4b316@mail.gmail.com>
<dcc563d10808231818l4ad52e58k6b29ba92d6bc51e4@mail.gmail.com>
hello to all,
I've a question regarding the folowing comments.
How to estimate vacuum aggressiveness ?
It's for me very deficulte to setup the autovaccum setting correctly. It
seems for me that it is not enough aggressive, but when I change the
settings the autovacuum process is almost always running.
So how to setup it, for around 40000 insert, update, delete per 5 minutes
regards
david
Scott Marlowe a écrit :
> On Sat, Aug 23, 2008 at 6:59 PM, Loic Petit <tls.wydd@free.fr> wrote:
>
>> 1 table contains about 5 indexes : timestamp, one for each sensor type - 3,
>> and one for packet counting (measures packet dropping)
>> (I reckon that this is quite heavy, but a least the timestamp and the values
>> are really usefull)
>>
>
> But what's the update rate on these indexes and tables? I'm wondering
> if you're not vacuuming aggresively enough to keep up with bursty
> update patterns
>
>
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Subject: Re: Large number of tables slow insert
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