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Date: Wed, 12 Dec 2007 01:09:28 +0100 From: Alejandro Riveira Fernández <ariveira@...il.com> To: Rene Herman <rene.herman@...il.com> Cc: Linux Kernel <linux-kernel@...r.kernel.org>, dpreed@...d.com, Alan Cox <alan@...rguk.ukuu.org.uk>, pavel@....cz, andi@...stfloor.org, rol@...917.net, Krzysztof Halasa <khc@...waw.pl>, david@...idnewall.com, hpa@...or.com, john@...ffel.org, linux-os@...logic.com Subject: Re: [RFT] Port 0x80 I/O speed El Wed, 12 Dec 2007 00:51:25 +0100 Rene Herman <rene.herman@...il.com> escribió: > On 12-12-07 00:43, Alejandro Riveira Fernández wrote: > > > On my AMD 3800 X2 (2000MHz) ULi M1697 2.6.24-rc5 i get: > > > > cycles: out 1844674407370808, in 1844674407369087 > > > > It is not constant but variations are not significant afaics > > Eh, oh, I guess you need to compile as a 32-bit binary... I tried without -O2 as Nigel Cunningham... cycles: out 1562, in 865 cycles: out 1562, in 866 cycles: out 1555, in 858 cycles: out 1562, in 866 With -m32 -O2 cycles: out 1566, in 876 cycles: out 1555, in 865 cycles: out 1594, in 931 cycles: out 1559, in 874 ... > > Rene. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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