Date: Sun, 11 Jul 2010 17:02:59 +0200 From: Gabor PALI <pgj@FreeBSD.org> To: "Robert N. M. Watson" <rwatson@freebsd.org> Cc: svn-src-head@freebsd.org Subject: Re: svn commit: r209119 - head/sys/sys Message-ID: <AANLkTik9qEqaNleJS7S5XkxCMgiHWmXsMAC0HEXvJ9Co@mail.gmail.com> In-Reply-To: <001126CD-F68F-46A3-90CE-CA2BE6E36B8E@freebsd.org> References: <4C376B0E.9050505@FreeBSD.org> <alpine.BSF.2.00.1007091949170.94277@fledge.watson.org> <4C37713D.5060202@FreeBSD.org> <4A28A601-C87F-47C6-8CBE-5F1BF866CA4A@FreeBSD.org> <AANLkTikkDxOPhiA_NYmwO_Bpxb9g2M7UGRpBW85dBN_I@mail.gmail.com> <001126CD-F68F-46A3-90CE-CA2BE6E36B8E@freebsd.org>
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On Sun, Jul 11, 2010 at 11:27 AM, Robert N. M. Watson <rwatson@freebsd.org> wrote: > [..] a duplicated carry(for example) [..] is not really acceptable. I see. It would be nice to model such extreme cases somehow, so we could test them against different solutions. > What sort of measurement did you do to show the speed loss, BTW? Here is my test code [1]. Feel free to comment on it and/or suggest improvements, fixes :) :g [1] http://people.freebsd.org/~pgj/patches/2010/07/11/counter_test.c
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