On Wed, Oct 12, 2016 at 1:07 PM, Johannes Sixt <j...@kdbg.org> wrote:
> Sigh. DCLP, the Double Checked Locking Pattern. These days, it should be
> common knowledge among professionals that this naïve version _does_not_work_
> [1]!
> I suggest you go without it, then measure, and only *then* optimize if it is
> a bottleneck. Did I read "we do not expect much contention" somewhere?
> [1] http://www.aristeia.com/Papers/DDJ_Jul_Aug_2004_revised.pdf C++ centric,
> but applies to C just as well
> -- Hannes

You know, I always wondered why Linux Kernel code needed memory
barriers but userspace programs didn't seem to use them.. turns out
they actually *do* need them for the same exact types of problems...


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