Hello,
Sorry for my poor english,
My problem :
I meet some performance problem during load increase.
massive update of 50.000.000 records and 2.000.000 insert with a weekly
frequency in a huge table (+50.000.000 records, ten fields, 12 Go on hard disk)
current performance obtained : 120
Hi Larry,
Do you run vacuum and analyze frequently?
Did you check PowerPostgresql.com for hints about PostgreSQL tuning?
http://www.powerpostgresql.com/Docs/
You can increase wal_buffers, checkpoint_segments and checkpoint_timeout
much higher.
Here is a sample which works for me.
wal_buffers =
Hi, Larry,
Hi, Sven,
Sven Geisler wrote:
You can increase wal_buffers, checkpoint_segments and checkpoint_timeout
much higher.
You also should increase the free space map settings, it must be large
enough to cope with your weekly bunch.
Markus
--
Markus Schaber | Logical TrackingTracing
On 7/26/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hello,
Sorry for my poor english,
My problem :
I meet some performance problem during load increase.
massive update of 50.000.000 records and 2.000.000 insert with a weekly
frequency in a huge table (+50.000.000 records, ten fields, 12
Hi all,
I execute the following query on postgresql 8.1.0:
SELECT
u.telephone_number
, u.telecom_operator_id
, u.name
FROM
campanas_subcampaign AS sub
, agenda_users AS u
, agenda_users_groups ug
WHERE
sub.customer_app_config_id = 19362
AND sub.subcampaign_id = 9723
AND
Arnau [EMAIL PROTECTED] writes:
the explain analyze shouts the following:
The expensive part appears to be this indexscan:
- Index Scan using pk_agndusrgrp_usergroup on
agenda_users_groups ug (cost=0.00..123740.26 rows=2936058 width=30)
(actual time=0.101..61921.260
