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Subject: Re: [boost] [Review] Lockfree review starts today, July 18th
From: Grund, Holger (Holger.Grund_at_[hidden])
Date: 2011-07-22 02:05:48

> > > in this case one could argue, that you should ensure the padding
> > > manually :)
> >
> > That seems counter-intuitive to me. If you expect users to do so that
> > should probably be spelled out clearly.
> well, i think this is not really a common case. if one wants to be
> sure, that there is absolutely no false sharing, one would have to pad
> the whole class to ensure that nothing before and nothing after the
> data structure will be placed in the same cache line. but i think going
> that far is overkill ...
Interesting -- I would have expected this to be the common case and the cost of cacheline alignment to be relatively minor for a ringbuffer.

Anyway, I'll see if I can take a closer look.


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