On Wed, Nov 21, 2001 at 08:29:06PM +0900, Atsushi Nemoto wrote:
> Yes, my patch provides "CPU" statistics (not "thread" statistics).
> Counting per thread might be useful in some case, but counting
> globally (like "unaligned_instructions" or "ll_ops" counter) is enough
> for me.
Those are certainly unlucky examples for performance counter interfaces.
We have further problems to solve in that area. Many current cpus
implement performance counters and right now Linux/MIPS doesn't use or
support those at all. Unfortunately performance counter implementations
differ wildly. We have to deciede about an interface that's supportable
by all the hardware out there.