On Mon, Jan 4, 2016 at 3:52 PM, Eric Dumazet <eric.duma...@gmail.com> wrote: > On Mon, 2016-01-04 at 15:34 -0800, Tom Herbert wrote: >> On Mon, Jan 4, 2016 at 2:36 PM, Eric Dumazet <eric.duma...@gmail.com> wrote: >> > On Sun, 2016-01-03 at 15:22 -0800, Tom Herbert wrote: >> > \... >> >> +402: /* Length 2, align is 1, 3, or 5 */ >> >> + movb (%rdi), %al >> >> + movb 1(%rdi), %ah >> > >> > Looks like a movw (%rdi),%ax >> > >> Wouldn't that be an unaligned access? > > x86 does not care. (This is why we have > CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) > > I bet it is faster using a single instruction. > Okay, I'll re-implement without worrying about alignment. If it's not an issue at all (even for eight bytes) then that will be a speedup.
Thanks, Tom > > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
