| Date | Wed, 12 Dec 2007 13:57:01 +0200 | From | Ville Syrjälä <> | Subject | Re: [RFT] Port 0x80 I/O speed |
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On Wed, Dec 12, 2007 at 12:31:18AM +0100, Rene Herman 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.
vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz stepping : 6
cpu MHz : 2394.000 cycles: out 1830, in 1166
cpu MHz : 1596.000 cycles: out 1925, in 1266
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vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10
cpu MHz : 850.000 cycles: out 1142, in 475
cpu MHz : 700.000 cycles: out 914, in 406
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vendor_id : AuthenticAMD cpu family : 6 model : 7 model name : AMD Duron(tm) processor stepping : 1
cpu MHz : 1300.108 cycles: out 2562, in 2562
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vendor_id : GenuineIntel cpu family : 6 model : 5 model name : Pentium II (Deschutes) stepping : 2
cpu MHz : 449.242 cycles: out 607, in 272
-- Ville Syrjälä syrjala@sci.fi http://www.sci.fi/~syrjala/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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