Did the consultant also tell you to dim the light in the computer?
Without knowing more detail about your system, these settings look rather
suspicious. It looks more like a consultant showing of his _ parameter
knowledge (or actually lack of it).
If I had to interpret these recommendations, I would say that you have a
system that suffers from many hard/soft parsers (library cache and shared
pool latch contention) and some DBWR performance problems. But again without
more data (versions, stats etc) I wouldn't be able to tell for sure.
Anjo.
On 9/6/06, amonte <ax.mount@xxxxxxxxx> wrote:
>
> Hi
>
> I have been suggested by some Oracle Consultant to set 20 Database
> Writer in a 12 CPU HP-UX Server.
>
> Does anyone know what are the side effects of having excessive DBWR? I
> detected a higher CPU usage (between, 1% to 2%) not sure if its due to the
> number of Database Writer. Because when I increased the number of DBWR at
> init.ora I also changed these parameters
>
> _row_cache_cursors = 60
> _kgl_latch_count = 59
> _kghdsidx_count = 4
> statistics_level = basic
>
> again suugested by this guy.
>
> TIA
>
> Alex
>
>
>
--
Anjo Kolk
Owner and Founder OraPerf Projects
tel: +31-577-712000
mob: +31-6-55340888
