| | Date | Wed, 12 Dec 2007 10:39:40 -0800 | | From | "SL Baur" <> | | Subject | Re: [RFT] Port 0x80 I/O speed |
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On 12/11/07, Rene Herman <rene.herman@gmail.com> wrote: > Good day. > > Would some people on x86 (both 32 and 64) be kind enough to compile and run > the attached program? This is about testing how long I/O port access to port > 0x80 takes. It measures in CPU cycles so CPU speed is crucial in reporting.
model name : Intel(R) Pentium(R) 4 CPU 3.20GHz cpu MHz : 3201.345
cycles: out 3026, in 2204 cycles: out 3031, in 2182 cycles: out 3019, in 2196 cycles: out 3030, in 2201 cycles: out 3013, in 2186
-sb
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