Re: Sustained inserts per sec ... ? - Mailing list pgsql-performance

From Tom Lane
Subject Re: Sustained inserts per sec ... ?
Date
Msg-id 6490.1112672100@sss.pgh.pa.us
Whole thread Raw
In response to Re: Sustained inserts per sec ... ?  (Christopher Petrilli <petrilli@gmail.com>)
List pgsql-performance
Christopher Petrilli <petrilli@gmail.com> writes:
> On Apr 4, 2005 10:36 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> The indicated fix of course is to increase shared_buffers.

> Any idea where it should be set?

Not really.  An upper bound would be the total size of the finished
indexes for one 10M-row table, but one would suppose that that's
overkill.  The leaf pages shouldn't have to stay in RAM to have
reasonable behavior --- the killer case is when upper-level tree
pages drop out.  Or that's what I'd expect anyway.

You could probably drop the inter-insert sleep for testing purposes,
if you want to experiment with several shared_buffers values quickly.

            regards, tom lane

pgsql-performance by date:

Previous
From: Steven Rosenstein
Date:
Subject: Re: Bulk COPY end of copy delimiter
Next
From: Greg Stark
Date:
Subject: Re: Sustained inserts per sec ... ?