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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 8 Jan 2024 13:11:12 -0800
Message-ID: <CAHk-=whkGHOmpM_1kNgzX1UDAs10+UuALcpeEWN29EE0m-my=w@mail.gmail.com>
Subject: Re: [PATCH next v4 0/5] minmax: Relax type checks in min() and max().
To: Jiri Slaby <jirislaby@gmail.com>
Cc: David Laight <David.Laight@aculab.com>, 
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, 
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>, 
	Andrew Morton <akpm@linux-foundation.org>, "Matthew Wilcox (Oracle)" <willy@infradead.org>, 
	Christoph Hellwig <hch@infradead.org>, "Jason A. Donenfeld" <Jason@zx2c4.com>
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On Mon, 8 Jan 2024 at 12:04, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> So we *could* plan on that, remove the checks from min/max, and use
> something like the attached patch.

Whee.

On my machine, that patch makes an "allmodconfig" build go from

    10:41 elapsed

to

     8:46 elapsed

so that min/max type checking is almost 20% of the build time.

Yeah, I think we need to get rid of it.

Can somebody else confirm similar time differences? Or is it just me?

                 Linus