low number of free buffers in the buffer cache

From: Gurelei <gurelei_at_yahoo.com>
Date: Tue, 19 Aug 2003 09:59:24 -0800
Message-ID: <F001.005CB8E6.20030819095924@fatcity.com>

Hi.

I have noticed that the number of free db buffers in my bd cache is pretty low. Based on this query

select decode(state,0,'Free',1,decode
lrba_seq,0,'Available','Being Used'),
'Being Used',state) "Block Status",
 count(*)
 from x$bh
group by
decode(state,0,'Free',1,decode(lrba_seq,0,'Available','Being Used'),
  3,'Being Used',state)

I see 36000 available buffers and about 1000 being used. I don't have any complaints about performance
(yet) and I know that too many free buffers indicates
that the db_cache is too big. Is there the minimum number of free buffers that I would need to keep or can I just ignore it.

TIA Gene

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Author: Gurelei
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Received on Tue Aug 19 2003 - 12:59:24 CDT