"Billy Verreynne" <vslabs_at_onwe.co.za> wrote in message
news:amec6h$37i$2_at_ctb-nnrp2.saix.net...
> steve wrote:
>
> > I need to "hammer" on the database, causing tremendous amounts of I/O.
> > I have one program that I submit about 30 processes of to a batch queue,
> > and it does 50K inserts to the table (per process), but the machine is
> > still loafing.
>
> Try using full table scans (not using any indexes). This can be done via a
> hint in your SQL SELECT statement, e.g.
> SELECT /*+ FULL(tablename) */ * FROM tablename
>
> Use cartesian joins, e.g.
> SELECT * FROM table1, table2, table3
>
> Combine these with a CREATE TABLE AS SELECT.
>
> In fact, being a newbie you have all the qualifications you need or
> hammering Oracle. :-)
Also forgot to mention, don't forget to size your redo buffer at the default
32k and the redo logs at say 128k so as to checkpoint as often as possible.
--
Niall Litchfield
Oracle DBA
Audit Commission UK
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Received on Fri Sep 20 2002 - 09:38:53 CDT
