Messages in this thread | | | Date | Fri, 14 Jul 2006 12:11:32 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] Use uname not sysctl to get the kernel revision |
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Benjamin Herrenschmidt wrote: >> >> If you want to do the job right then do this >> >> - Stick an indicator of how much else wants to run on this CPU in the >> vsyscall page or similar location > > Except that "this cpu" doesn't really mean anything in userspace, and > while I think Andi has some tricks to get some sort of CPU number to > userspace (though it's really only valid during the execution of the > instruction that reads it :) I haven't yet found an equivalent for > powerpc (and possibly other architectures will have the same problem). >
Sure it does... although its validity in terms of a locality metric decays with time.
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