Originally posted by: SystemAdmin

Hi All,

I am having AIX version 5.3.0.0 on my system.My Project uses 32 bit CICS as middleware.
We have upgraded our ASE 15.0.1(Sybase) from 32 to 64 bit and we use its 32 bit library set for compiling our application.
Due to this upgradation we had to upgrade AIX from 32 to 64 bit as ASE 15.0.1 is not available on 32 bit AIX at all.CICS needs to be 32 bit as there is no 64 bit CICS available from IBM currently.
So my final configuration is :
AIX 64 bit, 32 bit CICS, and 64 bit ASE of which we use 32 bit library set for compiling our application.

Now my question is : Whether this 32 bit and 64 bit combinations of CICS and AIX respectively can cause some emulation processes to start ? This may degrade the performance of the system.If yes then to what extent the performance may go down?

Please throw some light on this.

Thanks
Abhi

Originally posted by: nagger

AIX is happy running 32 bit and 64 bit application at the same time on the same system regardless of the AIX kernel being 32 or 64 bit.

You will have to check with the application vendors that they will compile OK and they can find the libraries they need to match to run.

There is no emulation here - POWER and AIX does not suffer the problems of processors like the Itanium when it tries to x86 binaries is special modes.

So, no emulation = 100% full speed.
In fact, most AIX commands are compile 32 bit as they don't need large memory support and 32 bit makes them slightly smallr thus saving memory.

Hope this helps, N

Originally posted by: SystemAdmin

Thanks for the help...Will bug you again if need arises...

Thanks
Abhi

Originally posted by: SystemAdmin

hi,abhi123,could you give me some document about deivce dirver?or give me a char divice driver demo. my email:hwzhongyun@huawei.com
thank you!!