>> 4*8 = 32 bytes, where did 256 bytes come from?
>
> You are right. It should be 32 bytes. I will change the wording in future
> patch. The real calculation in code is right though.
I don't know if it makes sense to round up to a cache line. My
suspicion is that it won't matter, as these fields will be read-mostly,
on the other hand, wasting 32 bytes isn't exactly a problem, either.
-hpa
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