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bibi92Flag for France

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mutliple buffer pools on oracle 11g

Is it possible to activate these parameters on oracle 11g for multiple buffer pools?

Can these parameters have in impact on batchs's elapsed time, please?
DB_BLOCK_BUFFERS=1000
DB_BLOCK_LRU_LATCHES=6
BUFFER_POOL_KEEP=(buffers:400, lru_latches:2)
BUFFER_POOL_RECYCLE=100

Thanks

Regards

Bibi
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slightwv (䄆 Netminder)

>>multiple buffer pools?

What do you mean?  Are you wanting to know if you can set DB_BLOCK_BUFFERS for specific pools?

If so, no.  You can control the individual sizes of the different pools but I would let Oracle take care of all this with Automatic Memory Management (AMM).
Are you talking about the DB_nK_CACHE_SIZE parameters?  These control block buffers for tablespaces with block sizes that are not the default block size for the database.

You would only need to specify these parameters if you created a tablespace with a specific block size.

If you are going to specify DB_nK_CACHE_SIZE, then you cannot specify DB_BLOCK_BUFFERS, you must specify DB_CACHE_SIZE in its place.
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ASKER

I'm talking about DB_BUFFER_POOL.

Thanks

Regards

Bibi
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slightwv (䄆 Netminder)

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ASKER

Thanks bibi