Re: [GENERAL] Postgres 7.3.2 -> 8.1.2 upgrade performance issue

2006-02-03 Thread David Brain
OK - spent some more time profiling what was going on on both the client and server machine. It began ti look more like a connector problem (I was seeing low CPU usage on both client & server and could see very slow BIND/INSERT/COMMIT commands being sent to the db). Upgraded to Npgsql 1.0beta

Re: [GENERAL] Postgres 7.3.2 -> 8.1.2 upgrade performance issue

2006-02-03 Thread David Brain
Tom Lane wrote: Did you remember to VACUUM ANALYZE after loading the data? It sounds to me like bad choices of plans ... Yes - although I have autovacuum off, partly to make an apples to apples comparison with 7.3 and partly due to the nature of the app. On the application side I'm con

Re: [GENERAL] Postgres 7.3.2 -> 8.1.2 upgrade performance issue

2006-02-03 Thread Woody Woodring
Did you analyze after you imported the dump? Woody -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Brain Sent: Friday, February 03, 2006 10:03 AM To: pgsql-general@postgresql.org Subject: [GENERAL] Postgres 7.3.2 -> 8.1.2 upgrade performa

Re: [GENERAL] Postgres 7.3.2 -> 8.1.2 upgrade performance issue

2006-02-03 Thread Tom Lane
David Brain <[EMAIL PROTECTED]> writes: > Recently tried an upgrade from 7.3.2 to 8.1.2. The actual upgrade went > pretty well. However my application is now getting >10 times slower > INSERT times than it was under 7.3.2. As far as possible I mirrored the > settings in postgresql.conf (obvio

[GENERAL] Postgres 7.3.2 -> 8.1.2 upgrade performance issue

2006-02-03 Thread David Brain
Hi, Recently tried an upgrade from 7.3.2 to 8.1.2. The actual upgrade went pretty well. However my application is now getting >10 times slower INSERT times than it was under 7.3.2. As far as possible I mirrored the settings in postgresql.conf (obviously I couldn't just drop in the old conf