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SubjectRe: [PATCH] include: kernel.h: rewrite min3, max3 and clamp using min and max
On Mon, 16 Jun 2014 16:54:32 -0700 (PDT)
David Rientjes <rientjes@google.com> wrote:

>
>
> On linux-next, allyesconfig has a 0.0001% savings as a result of the
> patch, but I'd be worried about the extra temp variable it allocates on
> the stack that is evident in the mm/slab.c disassembly unless all cases
> can be audited to show that we're not potentially deep.

A 0.0001% change means it's not worth changing, and we may be able to
mark this up as a fluke in Michal's results.

I'll give it a try on my 4.6.3 compiler.

-- Steve

>
> text data bss dec hex filename
> 108573045 23488016 51580928 183641989 af22785 vmlinux.before
> 108572908 23488016 51580928 183641852 af226fc vmlinux.after



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