On Wed, Dec 10, 2008 at 03:44:31PM +1100, Paul Mackerras wrote: > Andi Kleen writes: > > > When you say counting you should also include "event ring buffers with > > metadata", like PEBS on Intel x86. > > I'm not familiar with PEBS. Maybe it's something different again, > neither sampling nor counting, but a third thing? Yes it's a third thing. A CPU controlled ring event buffer. See Stephane's description. There's also some crosses, e.g. AMD's IBS (which is essentially a counter + some additional registers to give more details about the interrupted instruction) -Andi -- ak@xxxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
