32 bits ORACLE under 64 bits Redhat Environment??

[mcclnx mcc]

We have ORACLE 9ir2 on Redhat 4.3 and plan to change
Redhat from 32 bits O.S. to 64 bits Redhat AS4.

Does anyone have ORACLE 9ir2 or 10Gr2 "32" bits under
Redhat AS4 64 bits environment?

does it ORACLE 32 bits run stable enough under 64 bit
LINUX environment?

Can you also compare performance about 64 bits ORACLE
on 64 bits Redhat with 32 bit ORACLE with 64 bits
O.S.?

Thanks.

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