linux-kernel - Re: x86/csum: Remove unnecessary odd handling

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Message-ID: <CAHk-=wg8vssPVO68_qH_BHBCj6_DDawKQHBOgZh4gw5YFmpCKA@mail.gmail.com>
Date: Fri, 5 Jan 2024 10:05:44 -0800
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: David Laight <David.Laight@...lab.com>
Cc: Noah Goldstein <goldstein.w.n@...il.com>, kernel test robot <lkp@...el.com>, 
	"x86@...nel.org" <x86@...nel.org>, 
	"oe-kbuild-all@...ts.linux.dev" <oe-kbuild-all@...ts.linux.dev>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "edumazet@...gle.com" <edumazet@...gle.com>, 
	"tglx@...utronix.de" <tglx@...utronix.de>, "mingo@...hat.com" <mingo@...hat.com>, "bp@...en8.de" <bp@...en8.de>, 
	"dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>, "hpa@...or.com" <hpa@...or.com>
Subject: Re: x86/csum: Remove unnecessary odd handling

On Fri, 5 Jan 2024 at 02:41, David Laight <David.Laight@...lab.com> wrote:
>
> Interesting, I'm pretty sure trying to get two blocks of
>  'adc' scheduled in parallel like that doesn't work.

You should check out the benchmark at

       https://github.com/fenrus75/csum_partial

and see if you can improve on it. I'm including the patch (on top of
that code by Arjan) to implement the actual current kernel version as
"New version".

         Linus

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