Quote:
Originally posted by abhaysk
Well can you please get a link where it says having large SGA is not a problem from 9.x.. Or rather give a logical analogy?
Well i have seen in some of the instances (9.x) where SGA was more than 3+GB were performing poor (DB Cache was 2.5+GB)... and after reducing it to 1GB DB was performing good.
Abhay.
I recall that the problem was to do with the way that blocks in the sga were "indexed" internally -- if there were too many in memory the it took too long for them to be scanned.