No swapping is done as we are trying to use more
memory since we have too much of it.
- Jim Newman <jnewman_at_measurecast.com> wrote:
> Has the larger use of memory resulted in swapping?
> That could slow things
> down.
>
> Jim
>
> -----Original Message-----
> Poovathummoottil
> Sent: Wednesday, June 20, 2001 11:26 AM
> To: Multiple recipients of list ORACLE-L
>
>
> Hi All,
>
> We have small data warehouse database. Some queries
> against some fact tables which are in the range of
> 30
> to 40 GB are often causing full table scans. We had
> the SORT_AREA_SIZE set to 1M and we were seeing a
> memory sort of 99%. But the number of queries which
> used the disk sort was around 500 for a week. I plan
> to increase the sort area size according to the
> formula given in Steve Adams' website and tested a
> few
> queires to use a SORT_AREA_SIZE of 86M and found
> that
> all the quries which used the larger sort_area_size
> actually ran slower than the ones which used 1M
> sort_area_size.
>
> Could some one explain this behaviour?
>
>
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> Author: Johnson Poovathummoottil
> INET: joni_65_at_yahoo.com
>
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> Author: Jim Newman
> INET: jnewman_at_measurecast.com
>
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Author: Johnson Poovathummoottil
INET: joni_65_at_yahoo.com
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
San Diego, California -- Public Internet access / Mailing Lists
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Received on Wed Jun 20 2001 - 16:35:32 CDT
