Is there a free and cycle-accurate ARM (Cortex A9) simulator out there?
I think ARM IDE is providing some sort of profiler but first I am not sure if it provides a command line interface and secondly it is not free. I was hoping to find something from GNU but I couldn't find any ...
There are no free cycle accurate simulators available for recent ARM cores. You best bet is to buy a Cortex A9 development board (like a Pandaboard) and use that for performance benchmarking.
With the acquisition of Carbon Design System ARM started offering cycle accurate models for its cores. These models are slow compared to fast models which are functionally accurate but not cycle accurate. For more details one can refer http://www.arm.com/products/tools/models/cycle-models.php
来源：https://stackoverflow.com/questions/16198424/arm-cycle-accurate-simulator