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Date: Wed, 12 Dec 2007 20:19:19 +0100
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To: "H. Peter Anvin" <hpa@zytor.com>
CC: Jiri Slaby <jirislaby@gmail.com>, Rene Herman <rene.herman@gmail.com>,
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Subject: Re: [RFT] Port 0x80 I/O speed
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From: Rene Herman <rene.herman@gmail.com>
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On 12-12-07 19:44, H. Peter Anvin wrote:

>> model name      : Intel(R) Xeon(R) CPU           E5335  @ 2.00GHz 
>> cycles: out 3217, in 1898
> 
> 1.6 µs, on the high end....
> 
>> model name      : Dual Core AMD Opteron(tm) Processor 275
>> cycles: out 5508, in 5524
> 
> Definitely an outlier; 2.5 µs here.

Jah, I don't trust that one. Just posted the complete results:

http://lkml.org/lkml/2007/12/12/309

Rene.