Hi Andi, On Fri, 26 Oct 2012 13:29:43 -0700, Andi Kleen wrote: > From: Andi Kleen <a...@linux.intel.com> > > Add support for the v2 PEBS format. It has a superset of the v1 PEBS > fields, but has a longer record so we need to adjust the code paths. > > The main advantage is the new "EventingRip" support which directly > gives the instruction, not off-by-one instruction. So with precise == 2 > we use that directly and don't try to use LBRs and walking basic blocks. > This lowers the overhead significantly.
That means it can support precise == 3? Thanks, Namhyung -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
