Re: A few proposals, this time from the C++ standards committee

[Linus Torvalds <torvalds@linux-foundation.org>]

On Sun, 17 Mar 2024 at 17:42, Paul E. McKenney <paulmck@kernel.org> wrote:
>
> On the other hand, there is much more awareness of concurrency in that
> group than 20 years ago, so there is hope.

Yeah. But when I say "compiler writers don't understand memory
ordering", it's not that I think they need to be singled out - pretty
much *nobody* understands it.

Christ, I'm supposed to know it fairly well, and I still get it wrong
myself regularly and have to really think about it (and honestly just
prefer leaning on a few standard patterns rather than having to think
about it too much).

So "awareness of concurrency" is one thing, and I agree it's getting
much better.

Actually getting memory ordering right - even when you are aware of
concurrency - is another thing entirely.

                 Linus