[11u] RFR (S) 8221392: Reduce ConcurrentGCThreads spinning during start up

[Aleksey Shipilev]

On 6/26/19 10:20 AM, Langer, Christoph wrote:
> I eyeballed it and could not discover any mistakes. So, good to go from my end.

Thanks. I forgot to put jdk11u-fix-request on it, fixed now!

-Aleksey