linux-kernel - Re: hex_to

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Message-ID: <20100528210542.GG28651@iveqy.com>
Date:	Fri, 28 May 2010 23:05:42 +0200
From:	Fredrik Gustafsson <iveqy@...qy.com>
To:	Andy Shevchenko <andy.shevchenko@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: hex_to_bin speedup

On Thu, May 27, 2010 at 07:35:05PM +0300, Andy Shevchenko wrote:
> > [1] Benchmark results
> > $ gcc -O2 main.c && ./a.out
> > tolower() was faster 2657 times
> > if-statement was faster 2571 times
> > Equal fast 4772 times
> So, optimizer do the job for tolower(). Thus, nothing to worry about.
Yes I guess so. I tested with -Os too and that also does the trick.
Thank you for your time.

--
iveqy
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