64 bit or 32 bit installation of oracle 9i - which one?

hi there - i have a sun solaris ultra 60 with 2gb ram and 32gb hdd and solaris 9-64bit on it. should i install oracle 9i 32 bit or 64 bit? Also after trying to install the 32 bit server version of Oracle 9i on the same machine we noticed a severe decrease in speed on the server but uptime doesnt show any processes taking over the machine. Any ideas? has it got anything to do with 32 bit 64 bit installation distributions for either oracle or solaris??
thanks in advance guys

If you have an instance running on it, you can query the v$version view. This will give your the 32/64 bit info.
SQL> select * From v$version;
Oracle8i Enterprise Edition Release 8.1.7.4.0 - 64bit Production
PL/SQL Release 8.1.7.4.0 - Production
CORE 8.1.7.0.0 Production
TNS for Solaris: Version 8.1.7.4.0 - Production
NLSRTL Version 3.4.1.0.0 - Production
5 rows selected.

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