Nios2 FPGA based profiler Airwolf AddressTrace implementation

[Altera_Forum]

Hello All, 

 I am doing some research related to profiling and optimization of applications written for Nios 2 process using Altera FPGA. I know that gprof is available for profiling and it is a good tool to use. But I want to explore and compare other profiling and optimization tools as well. I have read some papers which have described the architecture of Airwolf and AddressTrace hardware based profilers but i have not find the implementation of these architectures anywhere for reference.   If anybody has ever used any other good tool for optimization on nios2 please tell me. I am waiting for the replies.  Thanks Amna

[Altera_Forum]

The performance counter is useful: 

 https://www.altera.com/support/support-resources/design-examples/intellectual-property/embedded/nios-ii/exm-profiling-de.html

[Altera_Forum]

--- Quote Start ---  The performance counter is useful:  https://www.altera.com/support/support-resources/design-examples/intellectual-property/embedded/nios-ii/exm-profiling-de.html  --- Quote End ---    Hello ted,  Thanks for the reply!!  but I want to use Airwolf and AddressTrace like non intrusive profilers. please help me finding these kind of hardware based profilers for nios 2