|Subject:||Database Buffer Cache Hit Ratio|
|Posted by:||pcambraf (pedro.camb…@gmail.com)|
|Date:||5 Oct 2005|
I had an 188.8.131.52 database with a 68% of buffer hit ratio and 180 Mb of
cache, I've changed the db_block_buffers parameter so we have 234 Mb of
db buffer cache, and the hit ratio is now 57%, almost a 10% less!!.
I'm mad about this, i've been looking around and i think it could be a
I/O retention in the only one DBWR process, =BFis this possible?
Are there any other factors to consider?
Thank you so much...