Messages in this thread | | | Date | Fri, 25 Apr 2008 11:13:23 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: [PATCH 1/1] x86: fix text_poke |
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Linus Torvalds wrote: > With each invocation being thousands of instructions and a cross-CPU IPI > for the tlb flush, that kind of stuff adds up. We're likely talking real > fractions of a second, rather than milliseconds.
Doesn't vunmap batch the cross-CPU tlb flushes to amortize the cost? Hm, no, it doesn't seem to. Oh, right, it was one of Nick's TBDs.
J
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