Re: execution time for first INSERT - Mailing list pgsql-performance

From Jeff Davis
Subject Re: execution time for first INSERT
Date
Msg-id 1310172023.5376.4.camel@jdavis-ux.asterdata.local
Whole thread Raw
In response to execution time for first INSERT  (Sergio Mayoral <mayoralstuttgart@yahoo.com>)
List pgsql-performance
On Fri, 2011-07-08 at 04:23 -0700, Sergio Mayoral wrote:
> this must be something with the parser stage and since i am doing
> every time the same queries, I would like to know if there is a way to
> cache these queries in order to speed up the first INSERT.

I doubt it's the parser.

Seeing as it's around a couple ms at minimum, it's probably some kind of
IO latency. You could see that by wrapping the statements in a big
transaction (BEGIN/END block) -- I bet the inserts go very quickly and
the final commit takes longer.

Regards,
    Jeff Davis


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