Re: Sustained inserts per sec ... ?

From: Tom Lane
Subject: Re: Sustained inserts per sec ... ?
Date: ,
Msg-id: 28353.1112388128@sss.pgh.pa.us
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In response to: Re: Sustained inserts per sec ... ?  (Christopher Petrilli)
Responses: Re: Sustained inserts per sec ... ?  (Christopher Petrilli)
List: pgsql-performance

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Sustained inserts per sec ... ?  ("Marc G. Fournier", )
 Re: Sustained inserts per sec ... ?  (Mike Nolan, )
  Re: Sustained inserts per sec ... ?  (Tom Lane, )
   Re: Sustained inserts per sec ... ?  (Mike Nolan, )
 Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
  Re: Sustained inserts per sec ... ?  (Tom Lane, )
   Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
    Re: Sustained inserts per sec ... ?  ("Joshua D. Drake", )
     Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
      Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
       Re: Sustained inserts per sec ... ?  (Tom Lane, )
        Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
         Re: Sustained inserts per sec ... ?  (Tom Lane, )
          Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
       Re: Sustained inserts per sec ... ?  (Simon Riggs, )
        Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
         Re: Sustained inserts per sec ... ?  (Simon Riggs, )
          Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
           Re: Sustained inserts per sec ... ?  (PFC, )
            Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
           Re: Sustained inserts per sec ... ?  (Simon Riggs, )
            Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
             Re: Sustained inserts per sec ... ?  (Simon Riggs, )
              Re: Sustained inserts per sec ... ?  (Mike Rylander, )
              Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
    Re: Sustained inserts per sec ... ?  (Tom Lane, )
 Re: Sustained inserts per sec ... ?  (Alex Turner, )
  Re: Sustained inserts per sec ... ?  (Alex Turner, )
   Re: Sustained inserts per sec ... ?  (Tom Lane, )
    Re: Sustained inserts per sec ... ?  (Alex Turner, )
 Re: Sustained inserts per sec ... ?  (Tom Lane, )
  Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
   Re: Sustained inserts per sec ... ?  (Tom Lane, )
  Re: Sustained inserts per sec ... ?  (Greg Stark, )
   Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
   Re: Sustained inserts per sec ... ?  (Tom Lane, )
    Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
     Re: Sustained inserts per sec ... ?  ("Jim C. Nasby", )
     Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
  Re: Sustained inserts per sec ... ?  (Simon Riggs, )
   Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
    Re: Sustained inserts per sec ... ?  (Simon Riggs, )
   Re: Sustained inserts per sec ... ?  (Christopher Petrilli, )
    Re: Sustained inserts per sec ... ?  (Simon Riggs, )

Christopher Petrilli <> writes:
> I can start at about 4,000 rows/second, but at about 1M rows, it
> plummets, and by 4M it's taking 6-15 seconds to insert 1000 rows.
> That's only about 15 rows/second, which is quite pathetic.   The
> problem seems to be related to my indexes, since I have to keep them
> online (the system in continually querying, as well).

I doubt it has anything to do with your indexes.  I'm wondering about
foreign key checks, myself.  What FKs exist on these tables?  Is the
"start" condition zero rows in every table?  Which PG version exactly?

            regards, tom lane


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