[pizlonator]

> Or so you assume

You're not including data in your discussion of this topic. Your post included zero data.

My post on WTF locks has tons of data.

So, I'm not assuming; I'm observing.

> And I've seen the issue in hundreds of captures using a profiler. I suppose we just have a different definitions of the what "worse performance" is.

Nobody cares what you saw in the profiler.

What matters is the performance users experience.

By any metric of observable performance, yielding is the optimal way of spinning.