Messages in this thread |  | | | Subject | Re: Intel P6 vs P7 system call performance | | From | Alan Cox <> | | Date | 17 Dec 2002 20:49:31 +0000 |
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On Tue, 2002-12-17 at 19:12, H. Peter Anvin wrote: > The complexity only applies to nonsynchronized TSCs though, I would > assume. I believe x86-64 uses a vsyscall using the TSC when it can > provide synchronized TSCs, and if it can't it puts a normal system call > inside the vsyscall in question.
For x86-64 there is the hpet timer, which is a lot saner but I don't think we can mmap it
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