Hi All, Is it possible to access cpu performance counters from user space? AFAIK, it is not possible. I am aware of various attempts like perfmon and perfctr patch set. Looks like a kernel module is mandatory to access these registers. My objective is to measure various parameters like number instructions retired, number of cache misses, number of brach mis predictions etc. I know of an alternative way to count the number of instructions by using ptrace but I think this approach is very slow. Regards, Sandeep. -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs
