linux-kernel - Re: [RFT] Port 0x80 I/O speed

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Date:	Wed, 12 Dec 2007 00:44:42 +0100
From:	Rene Herman <rene.herman@...il.com>
To:	Maxim Levitsky <maximlevitsky@...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

On 12-12-07 00:40, Maxim Levitsky wrote:

> maxim@...N:~/tmp$ sudo ./port800
> cycles: out 1767, in 1147
> maxim@...N:~/tmp$ sudo ./port800
> cycles: out 1774, in 1148
> maxim@...N:~/tmp$ sudo ./port800
> cycles: out 1769, in 1150
> maxim@...N:~/tmp$ sudo ./port800
> cycles: out 1769, in 1150
> maxim@...N:~/tmp$ sudo ./port800
> cycles: out 1777, in 1150
> maxim@...N:~/tmp$ sudo ./port800
> cycles: out 1766, in 1149
> maxim@...N:~/tmp$ sudo ./port800
> cycles: out 1768, in 1148
> maxim@...N:~/tmp$ sudo ./port800
> cycles: out 1765, in 1147
> 
> 
> Core 2 Duo system (ICH8/Intel DG965RY motherboard)

1.8 Ghz?

Rene.

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