Messages in this thread | | | Date | Tue, 11 Dec 2007 11:32:09 -0500 | From | "John Stoffel" <> | Subject | Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops |
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Here's my results on a PIII Xeon, 550mhz, 440GX chipset, and an ISA slot, which until recently was actually used with an 8 port serial card:
jfsnew:~/src> sudo ./port80 out: 729 in : 348 jfsnew:~/src> sudo ./port80 out: 729 in : 354 jfsnew:~/src> sudo ./port80 out: 729 in : 350 jfsnew:~/src> sudo ./port80 out: 728 in : 346 jfsnew:~/src> sudo ./port80 out: 730 in : 340
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