On Wed, Mar 04, 2015 at 08:26:33AM +0100, Ingo Molnar wrote: > Since most CPUs we care about have ERMS, wouldn't it be better to > patch in the actual memcpy_erms sequence into the primary memcpy() > function? It's just about 9 bytes AFAICT.
Actually, most set REP_GOOD - all Intel family 6 and all relevant AMDs. And only the newer Intels have ERMS. My SNB, for example doesn't while IVB has it. So I'd guess everything >= IVB would have it. -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. -- -- 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/