From: | "Robert John Shepherd" <robert(at)reviewer(dot)co(dot)uk> |
---|---|
To: | "'Stephan Szabo'" <sszabo(at)megazone23(dot)bigpanda(dot)com> |
Cc: | <pgsql-performance(at)postgresql(dot)org> |
Subject: | Re: [BUGS] Rapid deteriation of performance (might be caused by tsearch?) in 7.3.2 |
Date: | 2003-04-07 14:25:38 |
Message-ID: | 002801c2fd11$8f893340$f3b0313e@LAIKA |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-bugs pgsql-performance |
> > I've been running this daily:
> > vacuumdb -h localhost -a -z
> > Should I be using the full switch then?
>
> Well, you generally shouldn't need to if the fsm settings are high
enough.
> If you're doing really big updates like update each row of a 1 billion
> row table, you may end up having to do one immediately following that.
> Of course, if you're doing that, performance is probably not your
biggest
> concern. ;)
Not doing that, no. ;)
> Explain analyze'll tell us if the system is changing plans (presumably
to
> a worse one)
It wasn't, oddly enough.
I've added a new table that cuts down 85% of the work this query has to
do, and it seems to have helped an awful lot at the moment. Of course
only time will tell. :)
Thanks for the suggestions.
Yours Unwhettedly,
Robert John Shepherd.
Editor
DVD REVIEWER
The UK's BIGGEST Online DVD Magazine
http://www.dvd.reviewer.co.uk
For a copy of my Public PGP key, email: pgp(at)robertsworld(dot)org(dot)uk
From | Date | Subject | |
---|---|---|---|
Next Message | Michal Taborsky | 2003-04-07 15:16:25 | CREATE USER within function |
Previous Message | Mark Pether | 2003-04-07 13:27:07 | Re: Bug #933: Too many inserts crash server |
From | Date | Subject | |
---|---|---|---|
Next Message | Andrew Sullivan | 2003-04-07 14:36:17 | Re: Load times on RAID0 compared to RAID5 |
Previous Message | Howard Oblowitz | 2003-04-07 14:23:03 | Load times on RAID0 compared to RAID5 |