linux-kernel - Re: [PATCH] small update for strlen, strnlen, use less cpu instructions

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Message-ID: <CADvZEfUqRgaTEJJVXypzvES4g5zw2B+UbJKJeMnzkaJgSrA81w@mail.gmail.com>
Date:	Tue, 16 Jun 2015 13:56:52 -0500
From:	Luke Skywalker <lukes357@...il.com>
To:	Richard Weinberger <richard.weinberger@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] small update for strlen, strnlen, use less cpu instructions

> This is not a valid patch submission. Please see
> Documentation/SubmittingPatches.

I resent the patch an hour ago based on that document, thanks for
pointing this out.
I need to know if the patch is in good shape now, thanks

>
> Anyway, why do you think your patch makes strlen() better?
> Now strlen() increments a variable for each character it faces, hence
> it will consume more cycles.

you can look at the output of objdump -d to see why, also the assembly
snippet send by another person make this clear.
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