> What other purposes do you see the performance counters useful for? Export one to user space as a cycle counter for benchmarking. RDTSC doesn't do this job anymore.
> To collect information on process characteristics so they can be scheduled > more efficiently? That might happen at some point in the future, but i would expect us to wait for CPUs with more performance counters first. > Is this going to require sharing the nmi interrupt and knowing which > perfcounter > register triggered the interrupt to get the correct action? Currently the > oprofile interrupt handler assumes any performance monitoring counter it sees > overflowing is something it should count. Yes. That needs to be fixed. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
