Hi John,

If I'm understanding what I'm reading from the 9i Concepts Guide, I think that 
non-default block size objects can only go into the cache with the same block size 
(meaning it can't go into keep buffer).  I'm making this assumption because we can't 
create a tablespace of 16k blocksize until db_16k_cache exists.  However, I'm working 
on testing this today and will reply with results.

Darrell


>>> [EMAIL PROTECTED] 02/19/03 01:50PM >>>
I have indexes in a 16k page size tablespace.
I have the following init.ora parameters:

db_block_size=4096
db_cache_size=600M
db_keep_cache_size=200M
db_16k_cache_size=200M 

If I alter an index to put it in the keep pool, how does Oracle hande the
discrepancy between the 4k default keep buffer and the 16k index block size?

Am I better off keeping the index in the 16k cache or in the db_keep_cache
pool?

Since statspack shows:

Event                               Waits   Timeouts   Time (s)   (ms)
/txn
---------------------------- ------------ ---------- ---------- ------
--------
db file sequential read         2,725,553          0     40,710     15
355.2

I assume my indexes should be cached more to reduce the waits.
Is that correct?

Any advice would be appreciated.

Thanks

John Baylis
Database Administrator
Canadian Forest Products Ltd.
Vancouver B.C. Canada

> (604) 697-6476 (Office)
> (604) 313-6054 (Cell)
> 

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Darrell Landrum
  INET: [EMAIL PROTECTED]

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Reply via email to