Re: Comments on chapter 5

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On 2022-08-11 21:08, Paul E. McKenney wrote:
5.3.2: "references only per-thread variables, and should not incur any
cache misses" - except that the thread can migrate to other cores and
can thus incur cache misses.

Perhaps adding "in the common case" to that sentence?  Or did you have
something else in mind?

Pandora, meet can of worms (are mixed metaphors still frowned upon these days?).

Do you assume that in the common case threads tend to stick to the same core? If so, that's an interesting discussion, as I have changed my mind on the subject (or, rather, had the change forced on me) a few times.

--Elad



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