Hi,
On Wed, Dec 9, 2015 at 8:58 AM, Andi Kleen <a...@firstfloor.org> wrote: >> > the plan for me is to to use it some more to prove it's useful >> > and kick it to be merged with perf at some point >> >> So I never really liked the c2c tool because it was so narrowly >> focussed, it only works on NUMA thingies IIRC. > > It should work on all systems with an Intel Core (not Atom) > > However it was never clear to me if the tool was any better > than simply sampling for > > mem_load_uops_l3_hit_retired.xsnp_hitm:pp (local socket) > mem_load_uops_l3_miss_retired.remote_hitm:pp (remote socket) > > which gives you instructions that reference bouncing cache lines. > If I recall the c2c tool is giving you more than the bouncing line. It shows you the offset inside the line and the participating CPUs. -- 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/
