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Date: Fri, 09 Jul 2010 20:31:42 +0200
From: Gabor PALI <pgj@FreeBSD.org>
Organization: The FreeBSD Project
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Cc: svn-src-head@freebsd.org
Subject: Re: svn commit: r209119 - head/sys/sys
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On 06/18/10 14:08, Robert Watson wrote:
> The only reservation I have, really, is that 64-bit writes are
non-atomic on
> i386 and other 32-bit architectures (or, at least, I think they are).
This
> means DPCPU_SUM may encounter non-atomicity rather than just staleness
in the
> values it reads as it iterates. That said, we should probably use 64-bit
> anyway, because 32-bit counters are gauche. :-)

What is about introducing 64-bit atomic counters?


Cheers,
:g