atomic Weapons: The C++ Memory Model and Modern Hardware

[Sean Kelly]

On Jul 8, 2013, at 5:05 PM, Marco Leise <Marco.Leise at gmx.de> wrote:

> Fortunately on x86
> architectures at least, atomic operations are pretty sane and
> fast.

The x86 memory model is sufficiently strict that, by and large, simple concurrent interactions actually work without any memory barriers at all.  I've never been able to decide whether this is a good or a bad thing however.