Hello, all !
I want to find out the number of executed translated instructions on the host system, for certain user mode programs. For that purpose, I am using hardware performance counters. I start them right before calling function tcg_qemu_tb_exec ( ), and stop them when function is returned. That way counters can give me performance stats. only for running tcg_qemu_tb_exec(). Now this function, actually starts execution from pre-generated code i.e. prologue and ends with epilogue. I know that this overhead will be small with TB chaining. But, I was wondering if this strategy will still be able to give representative stats. for executed host code. Or are there other good ways which can tell number of executed host instructions not just number of translated instructions.
Thanks for your time.