Is this some kind of CPU.yield() (by analogy to Thread.yield())?
I was wondering the same, it feels like a more vague (API abstraction-wise at
least) architecture specific Thread.yield().
Paul.
Thread.sleep(0), Thread.yield() and now PerformanceHints.spinLoopHint()
are all implementation specific.
Furthermore, Intel [1] says " The execution of the next instruction is
delayed for an implementation-specific amount of time."
Can be a nop (and is a nop on old CPUs), can be something else.
[1] - https://software.intel.com/en-us/node/524249
