| From: | Bruno Wolff III <bruno(at)wolff(dot)to> |
|---|---|
| To: | "Harvey, Allan AC" <HarveyA(at)OneSteel(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Performance suggestions? |
| Date: | 2004-12-15 14:44:25 |
| Message-ID: | 20041215144425.GA13637@wolff.to |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On Wed, Dec 15, 2004 at 10:22:31 +1100,
"Harvey, Allan AC" <HarveyA(at)OneSteel(dot)com> wrote:
> Hi all,
>
> I'm after suggestions on how to keep the initial performance
> of a system I've put together for longer than 2 minutes.
>
> I have a small table about 20 rows, a constant, that is receiving
> about 160 updates per second.
> The table is used to share gathered data to other process asynchronously.
> After 5 min it is 12 updates per second.
> Performance returns after a vacuum analyse.
You should vacuum that table after a very short period of time. From your
description, I would guess that you want to vacuum it at least once a
minute, probably more often if the vacuum itself doesn't slow things
down too much.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Scott Marlowe | 2004-12-15 15:02:30 | Re: Corrupt RTREE index |
| Previous Message | Berend Tober | 2004-12-15 13:14:56 | Re: pgplsql SELECT INTO ... FOR UPDATE |