UNIX for Advanced & Expert Users

I hope I am posting the query at right place..

I have the project running as 32 bit application on Solaris 8. I want to port this to 64Bit application.

Before I start this process, I would like to compare the performance of a sample code running as 32Bit/64 Bit executables on a 64 bit Processor.

Are there any tools available which will show the performance characterstic of any program

I will compare the results and then based on the results , will start porting for 64Bit executables. Any help in this regards is appreciated ...

There are tools available based on what the code actually does. You can also monitor the CPU and Memory usage of the application it takes to execute. Also, I think you should time it in the code to collect metrics at various stages and compare them with 32bit mode and 64bit mode. Generally 64bit will give you access more memory space, rather than really improve performance..