[EMAIL PROTECTED] wrote: > > Rahul, > I believe there is an O/S maximum setting of this parameter to be 64K (this > covers AIX and HP and and may affect others) > This fits in with your finding so I am sure it is correct > > John > -----Original Message----- > Sent: 12 November 2002 09:11 > To: Multiple recipients of list ORACLE-L > > list !! > my ora7.3.2 instance on AIX with a db_block_size of 4k has a > multi block read count of 16 !! > > i thought i would create a new instance with a block size of 8k, so i can > set > the max multiblock read count to more than 16, BUT, after creating the new > instance > the db_multiblock_read_count *always* defaults to 8 !! > > here the new instance params > > db_files = 16 > db_file_multiblock_read_count = 32 > db_block_buffers = 3840 > db_file_simultaneous_writes = 8 > db_block_lru_latches = 8 > shared_pool_size = 31457280 > > which of these parameter is affecting the value of multiblock read count ??? > > TIA > Rahul > > PS: i hv checked the multiblock reads using ixora script... always 8 !! > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Rahul > INET: [EMAIL PROTECTED] >
Rahul, There is an extremely interesting paper on Connor McDonald's site, http://www.oracledba.co.uk/tips/mbrc.htm -- Regards, Stephane Faroult Oriole Software -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Stephane Faroult 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).
