pg.ddx.io pgsql-performance@postgresql.org mailing list archive
help / color / mirror / Atom feedQuery parallelism
2+ messages / 2 participants
[nested] [flat]
* Query parallelism
@ 2006-03-27 14:25 luchot <luchot@voila.fr>
0 siblings, 1 reply; 2+ messages in thread
From: luchot @ 2006-03-27 14:25 UTC (permalink / raw)
To: pgsql-performance
Hello everybody ,
I use PostgreSQL 8.1.3 on a bi-processor Xeon and I would know how to do to enable a parallelism for
the execution of queries. Indeed , when I analyse the use of the cpus during a query the result is that for
some minutes a cpu is used while the other not and after it is the contrary. So they are not used at the same
time and i would know what i have to do in order cpus work together .
Thanks and sorry for my english,
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: Query parallelism
@ 2006-03-27 14:31 Jim C. Nasby <jnasby@pervasive.com>
parent: luchot <luchot@voila.fr>
0 siblings, 0 replies; 2+ messages in thread
From: Jim C. Nasby @ 2006-03-27 14:31 UTC (permalink / raw)
To: luchot <luchot@voila.fr>; +Cc: pgsql-performance
On Mon, Mar 27, 2006 at 04:25:25PM +0200, luchot wrote:
> Hello everybody ,
> I use PostgreSQL 8.1.3 on a bi-processor Xeon and I would know how to do to enable a parallelism for
> the execution of queries. Indeed , when I analyse the use of the cpus during a query the result is that for
> some minutes a cpu is used while the other not and after it is the contrary. So they are not used at the same
> time and i would know what i have to do in order cpus work together .
> Thanks and sorry for my english,
PostgreSQL has no support for intra-query parallelism at this time.
Greenplum's MPP might do what you're looking for.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2006-03-27 14:31 UTC | newest]
Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2006-03-27 14:25 Query parallelism luchot <luchot@voila.fr>
2006-03-27 14:31 ` Jim C. Nasby <jnasby@pervasive.com>
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox