On 12/12/2007, Rene Herman <[EMAIL PROTECTED]> 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. >
[EMAIL PROTECTED]:/home/juhl# uname -a Linux dragon 2.6.24-rc3-g2ffbb837 #7 SMP PREEMPT Mon Nov 19 22:16:27 CET 2007 i686 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD GNU/Linux [EMAIL PROTECTED]:/home/juhl# cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 35 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ stepping : 2 cpu MHz : 2200.000 cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp bogomips : 4401.67 clflush size : 64 processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 35 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ stepping : 2 cpu MHz : 2200.000 cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp bogomips : 4399.52 clflush size : 64 [EMAIL PROTECTED]:/home/juhl# for i in $(seq 1 10); do ./port80 ; sleep 1 ; done cycles: out 1839, in 1715 cycles: out 1728, in 1604 cycles: out 1762, in 1714 cycles: out 1770, in 1722 cycles: out 1759, in 1723 cycles: out 1764, in 1723 cycles: out 1762, in 1712 cycles: out 1761, in 1723 cycles: out 1771, in 1715 cycles: out 1770, in 1709 -- Jesper Juhl <[EMAIL PROTECTED]> Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
