| From | Juergen Beisert <> | Subject | Re: [RFT] Port 0x80 I/O speed | Date | Wed, 12 Dec 2007 09:59:59 +0100 |
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$ for i in `seq 5`; do ./port80; sleep 1; done cycles: out 5260, in 2372 cycles: out 5260, in 2384 cycles: out 5260, in 2323 cycles: out 5270, in 2382 cycles: out 5259, in 2323
$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 7 model name : Pentium III (Katmai) stepping : 3 cpu MHz : 501.208 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 993.28
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$ for i in `seq 5`; do ./port80; sleep 1; done cycles: out 1214, in 1095 cycles: out 1215, in 1094 cycles: out 1214, in 1095 cycles: out 1216, in 1095 cycles: out 1213, in 1093
$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 11 model name : Intel(R) Celeron(TM) CPU 1000MHz stepping : 1 cpu MHz : 1002.285 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1998.84
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