From: | dforum <dforums(at)vieonet(dot)com> |
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To: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
Cc: | Loic Petit <tls(dot)wydd(at)free(dot)fr>, max(at)nts(dot)biz(dot)ua, pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Large number of tables slow insert |
Date: | 2008-08-24 14:31:14 |
Message-ID: | 48B170B2.9000401@vieonet.com |
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Thread: | |
Lists: | pgsql-performance |
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(dot)wydd(at)free(dot)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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