Advantages of 64 bit Tuxedo over 32 bit Tuxedo

Hi All,
I want to migrate Tuxedo 9.1 from 32 bit Tuxedo to 64 bit Tuxedo. Please tell what are the advantages of 64 bit Tuxedo over 32 bit Tuxedo.
Our Machines on which Tuxedo and Oracle are installed have 64 bit IBM AIX OS. Oracle is also 64 bit but Tuxedo is 32 bit.
Thanks in advance.
Edited by: Ravi Ranjan Karn on Feb 17, 2009 8:33 PM

Dear Todd & Ravi ,
We recently migrated Tuxedo From 32 bit ( 8.0) to 10.0 64 Bit . Regarding Performace we did not notice much improvment .
Rather it took more 4GB Ram to run smoothy ( it was running with 6 GB Ram ) .
We did the upgrade mainly for OS compatability , TSAM and SALT .
Ravi ,
regarding your thread related with RAC , here is my understanding .
Any how we have to configure in ubb to connect to the instance(s)
As per Oracle - in 10gR2 , its not possible to span global transaction between two instances, it has to be in a Single Instance .( as per them its allowed in 11g , but performance will be impacted which i cannot compromise )
In this case , how we will make use of the 2nd instance of RAC .?
u have a common service let say SRVC1 , which is connecting to one schema-1 of database and part of GT and used by more than one application .say SRVC2 , which is connecting to one schema-2 of database and part of GT and used by more than one application .
in this case how you will , configure tuxedo to use the 2nd instance - which is not possible as per statement 1 .
Conclusion, as per the current architecture of u r Tuxedo , there is no point in introduction Oracle-RAC,
but we can use RAC , by modifying Tuxedo
1. programmatically , change tuxedo to use the SRVC2 , in case a failure occurs in the call to SRVC1
2. replicate the SRVC1,SRVC2 and connect to the second Instance , route transactions in to this service from some applications .
3. simple way .. keep a secondary ubbconf2 file to point the second instance , in case the instace1 fails , load the ubbconf2 and run ( but for this u need to bring down the whole tuxedo!!!! )
this suggestion is totally based on my understanding ... If guys think other way , pls share
Nadeer.

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