RFR [sh/8u]: Do not enable UseCountedLoopSafepoints in Shenandoah by default

[Aleksey Shipilev]

On 10/23/19 12:57 PM, Roman Kennke wrote:
> http://cr.openjdk.java.net/~rkennke/clsp/webrev.01/

Yes.

I would add this comment:

   // Shenandoah cares more about pause times, rather than raw throughput.
   // Enabling safepoints in counted loops makes it more responsive with
   // long loops. However, it is risky in 8u, due to bugs it brings, for
   // example JDK-8176506. Warn user about this, and proceed.
   if (UseCountedLoopSafepoints) {

Looks good otherwise.

-- 
Thanks,
-Aleksey