I have a performance problem with Oracle8i (v184.108.40.206.9) (Import goes very slow and cpu is idle most of the time).
To find out what's wrong, I try the v$db_cache_advice, but the data isn't populated yet.
select SIZE_FOR_ESTIMATE "Cache size (MB)",
where name='DEFAULT' ;
The columns ESTD_PHYSICAL_READ_FACTOR & ESTD_PHYSICAL_READS are empty. In Oracle9i you first must enable the system (alter system set db_cache_advice on). But when I look in tahiti.oracle.com I cannot find anything about this. Even the view v$db_cache_advice is not known.
Is this a hidden and not working feature in Oracle8i?
If not, can someone point me in the right direction?
Thanks in advance,
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