On Fri, Oct 12, 2012 at 02:54:54PM +0000, Ma, Ling wrote: > > If you can't test the CPUs who run this code I think it's safer if you > > add a new variant for Atom, not change the existing well tested code. > > Otherwise you risk performance regressions on these older CPUs. > > I found one older machine, and tested the code on it, the results between > them are almost the same as below(attached cpu info).
Was that a P4 (family 15)? Those were the main users. There were a few others, but they are obscure (early steppings of K8) -Andi -- a...@linux.intel.com -- Speaking for myself only. -- 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/
