Re: performance impact of archivelog
- From: "Renato M" <renatomelogomes@xxxxxxxxx>
- To: david.h.roberts@xxxxxxxxxx
- Date: Mon, 17 Nov 2008 13:18:31 -0200
Hi, list.
I'm with the same doubt...
We have a Data Warehouse database in "no archivelog" mode with 180GB/day of
redo generation.
because of a new backup solution/ strategie, we need put it in "archivelog
ON".
Claudia,
Have you any other information about it ?
Thanks a lot!
Renato Gomes
Eds, an HP Company.
On Mon, Nov 17, 2008 at 9:09 AM, Roberts, David (GSD - UK) <
david.h.roberts@xxxxxxxxxx> wrote:
> 1. Performance cost of running in archivelog mode.
>
> We take our database out of archive log mode for a yearly batch process.
> Very roughly the dry run (which is run on a different but similarly
> specked machine in archive log mode) takes about 20% longer.
>
> Obviously as the difference is going to be dependent on how much change
> is going on, your mileage may vary.
>
>
> David Roberts
> www.logica.com
>
> Logica UK Limited
> Registered in England and Wales (registered number 947968)
> Registered office: Stephenson House, 75 Hampstead Road, London NW1 2PL,
> United Kingdom
>
> -----Original Message-----
> From: oracle-l-bounce@xxxxxxxxxxxxx
> [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Claudia Zeiler
> Sent: 15 November 2008 21:27
> To: oracle-l@xxxxxxxxxxxxx
> Subject: performance impact of archivelog
>
> Has anyone on the list seen a discussion of
>
> 1. performance cost of running in archivelog mode.
> 2. overhead of using partitions
> 3. time calculation to perform statistics
> 4. time savings of using statistics
>
> I always see these things discussed in terms of "more" but never in
> terms of "how much".
>
> Thanks for any information that you can point me to.
>
>
> Claudia Zeiler
>
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