Re: [PATCH v3] x86/lib: Optimize 8x loop and memory clobbers in csum_partial.c

From: Noah Goldstein
Date: Sat Nov 27 2021 - 02:21:08 EST


On Sat, Nov 27, 2021 at 12:51 AM Eric Dumazet <edumazet@xxxxxxxxxx> wrote:
>
> On Fri, Nov 26, 2021 at 10:39 PM Noah Goldstein <goldstein.w.n@xxxxxxxxx> wrote:
> >
> > Modify the 8x loop to that it uses two independent
> > accumulators. Despite adding more instructions the latency and
> > throughput of the loop is improved because the `adc` chains can now
> > take advantage of multiple execution units.
>
> Oh well, there was really no need to resend this, especially if you do
> not add my ack.
>
> Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx>

Sorry!

Is the protocol for tags to let the maintainer add them or
should I post a V4 with your tag?