Messages in this thread | | | Date | Tue, 17 Dec 2002 11:58:25 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: Intel P6 vs P7 system call performance |
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On Tue, 17 Dec 2002, Richard B. Johnson wrote: > > You can call intersegment with a full pointer. I don't know how > expensive that is.
It's so expensive as to not be worth it, it's cheaper to load a register or something, i eyou can do
pushl $0xfffff000 call *(%esp)
faster than doing a far call.
Linus
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