Hi, people!
Just my 5 cents...

>> Why did you expected better performance on 64 bit servers?
>> It is not true;
> Because RAM memory es almost double and then I can
> address more SGA increasing cache hit ratios.
If you already have hit ratio near 100% you could use
even 4-times more RAM/buffer cache but hit ratio
will be near the same (it couldn't be more then 100%).
But you will loose in latch contention and performance
will degrade... That's only example.

Agreed with Alexey - you should perform extended
Capacity Planing to know what you'll get exactly.

-- Best regards, Igor Ushkalo (igorus!) - igorus(at)mail.ru, ICQ #19972198



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