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Date: Tue, 6 Mar 2007 09:19:30 -0800 (PST)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Eric Dumazet <dada1@cosmosbay.com>
cc: "H. Peter Anvin" <hpa@zytor.com>, Davide Libenzi <davidel@xmailserver.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [patch v2] epoll use a single inode ...
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On Tue, 6 Mar 2007, Eric Dumazet wrote:
> 
> Something like :
> 
> [PATCH] : Use reciprocal divides in sprintf()

Try this on Core 2, and I suspect that you'll find that the hardware is 
actually *faster* than doing the shift/test, function call and the 
two multiplies.

> Using reciprocal divides permits to change each divide by two multiplies, less 
> expensive on current CPUS.

Are you sure?

		Linus