RFR (S): Single-element buffer in thread-local taskqueues

[Aleksey Shipilev]

On 11/09/2016 12:26 AM, Roman Kennke wrote:
>> Good to go?
> 
> Should we maybe put this code into shenandoahTaskQueue.hpp and friends?
> Reduce shared code changes, etc ;-)

Dunno. This looks like a good shared change that other GCs (that use
pretty much the same taskqueues) could leverage. I'd keep it as is.

Thanks,
-Aleksey