Arvind,
Try cutting DB_BLOCK_BUFFERS in half. Yeah it's a strange concept, but if the
swapper is running them giving back some memory to the system may stop it & the
improvement in response time will more than make up for the additional wait in getting
data into the cache.
Dick Goulet
-----Original Message-----
Sent: Tuesday, April 01, 2003 3:04 AM
To: Multiple recipients of list ORACLE-L
its a single instance system..here is some more details ...pls suggest
if something needs to be corrected
SHARED_POOL_SIZE=190MB
DB_BLOCK_SIZE = 4KB
DB_BLOCK_BUFFERS = 125000 (488MB)
LOG_BUFFER = 5MB
SORT_AREA_SIZE = 2MB
SORT_AREA_RETAINED_SIZE = 1MB
DB_WRITER_PROCESSES =4
LOG_ARCHIVE_MAX_PROCESS = 3
AND THE MOST WAITED EVENT IN V$SYSTEM_EVENT IS 'DB_FILE_SCATTERED_READ'
,TO REDUCE ITS WAIT
TIME I HAVE INCREASED THE DB_FILE_MULTIBLOCK_READ_COUNT FROM 16 TO 64 ,BUT
STILL SWAPPING SIZE IS SAME FROM 'TOP' COMMAND IN UNIX
Regards
Arvind
-----Original Message-----
Sent: Monday, March 31, 2003 10:19 PM
To: Multiple recipients of list ORACLE-L
Hi!
You didn't send your SHARED_POOL_SIZE parameter
value...
but...
usually, when the machine swaps is due to not enough
memory allocated!
I would check your shared_pool_size, sort_area_size,
and db_block_buffer for verifying that there's enough
memory asigned.
Of course, you should diagnose memory problems on your
OS and Oracle.
HTH
JL
--- Arvind Kumar <[EMAIL PROTECTED]> wrote:
>
> Hello all,
>
> i am facing swapping problem ..below is the
> details
>
>
> System - IBM RS 6000, two CPU,2GB RAM,AIX 4.3,4GB
> SWAP SPACE
>
> DATABASE - ORACLE 8i 8.1.5, SGA 800MB, BUFFER
> CACHE HIT RATIO IS ABOVE
> 93%
>
> Now the problem is of swapping there are about 70
> oracle users using this
> database ,swap utilization is always above 1.5gb.
>
> what could be the problem...
>
>
> Thanks
> Arvind Kumar
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.net
> --
> Author: Arvind Kumar
> INET: [EMAIL PROTECTED]> (by way of Jared
> Still <[EMAIL PROTECTED]
>
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