我有以下代码:{uint64_t cpu_clock_pa = per_cpu_ptr_to_phys(get_cpu_ptr(&cpu_clock));
__asm__ __volatile__ ..//Giving the PA to VMware kernel which is supposed to write something to
众所周知,perf是获取cache-miss、cache-reference、instruction executed等程序CPU性能计数器的工具。例如,我的程序首先做一些初始化,然后做工作,然后最后完成,我只是想得到工作的性能计数器,如函数do_something_1。 do_initialize(); /* begin profile co