| From: | Jim Vanns <james(dot)vanns(at)framestore(dot)com> |
|---|---|
| To: | Craig Ringer <ringerc(at)ringerc(dot)id(dot)au> |
| Cc: | Jim Vanns <james(dot)vanns(at)framestore(dot)com>, Martin French <Martin(dot)French(at)romaxtech(dot)com>, pgsql-performance(at)postgresql(dot)org, pgsql-performance-owner(at)postgresql(dot)org |
| Subject: | Re: Odd blocking (or massively latent) issue - even with EXPLAIN |
| Date: | 2012-07-24 08:37:12 |
| Message-ID: | 1343119032.12579.140.camel@sys367.ldn.framestore.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On Tue, 2012-07-24 at 08:30 +0800, Craig Ringer wrote:
> On 07/23/2012 10:46 PM, Jim Vanns wrote:
> > Nothing obvious - and we log a fair amount. No tmp table creations,
> > no locks held.
> >
> > To add to this EXPLAIN reports it took only 0.23ms to run (for example)
> > whereas the wall clock time is more like 20-30 minutes (or up to n hours
> > as I said where everything appears to click back into place at the same
> > time).
> How many concurrent connections do you have?
Between 4 and 64 at peak! max_connections is only set to 100.
Jim
> --
> Craig Ringer
--
Jim Vanns
Systems Programmer
Framestore
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Jim Vanns | 2012-07-24 08:48:11 | Re: Odd blocking (or massively latent) issue - even with EXPLAIN |
| Previous Message | Riaan van den Dool | 2012-07-24 08:10:00 | Re: Geoserver-PostGIS performance problems |