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.
I'm using 7.4.5.
This is the table structure
Table "public.lastscan"
Column | Type | Modifiers
-----------+-----------------------------+-----------
pointnum | integer | not null
parameter | character varying(8) | not null
value | double precision | not null
dt | timestamp without time zone | not null
Indexes:
"lsindex" btree (pointnum, parameter)
Or should I just stick to saving the data, inserts seem to go on and on, and
use a different IPC method.
Ta
Allan
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