| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Greg Smith <gsmith(at)gregsmith(dot)com>, Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Alan Li <ali(at)truviso(dot)com> |
| Subject: | Re: 8.4 open item: copy performance regression? |
| Date: | 2009-06-23 06:20:56 |
| Message-ID: | 1245738056.31430.172.camel@ebony.2ndQuadrant |
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| Lists: | pgsql-hackers |
On Mon, 2009-06-22 at 15:18 -0500, Kevin Grittner wrote:
> Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
>
> default postgresql.conf (comments stripped)
> max_connections = 100
> shared_buffers = 32MB
This forces ring size to be 4MB, since min(32MB/8, ringsize).
Please re-run tests with your config, ring size 4MB, which should give
same answer
--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support
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