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Re: Database Buffer Cache Hit Ratio

From: Noons <wizofoz2k_at_yahoo.com.au>
Date: 5 Oct 2005 15:06:05 -0700
Message-ID: <1128549965.860546.120020@g47g2000cwa.googlegroups.com>


(grabbing a drink and munchies...)

pcambraf wrote:
> Hi people.
>
> I had an 8.1.7.4 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, żis this possible?
>
> Are there any other factors to consider?
>
> Thank you so much...
>
> Regards
Received on Wed Oct 05 2005 - 17:06:05 CDT

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