RFR (S) 8164683: Solaris: JVM abuses thread preemption control

Patricio Chilano patricio.chilano.mateo at oracle.com
Thu Aug 9 22:09:40 UTC 2018

Hi Coleen,

The change looks good to me! I only see one extra mention to schedctl in 
objectMonitor.cpp not being removed ("Because of the lifecycle issues 
the schedctl and...").



On 8/9/18 11:26 AM, coleen.phillimore at oracle.com wrote:
> Summary: Complete removal of preemption control and command line 
> arguments (were deprecated in 11).
> Tested with hs-tier1-5 on solaris.
> open webrev at http://cr.openjdk.java.net/~coleenp/8164683.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8164683
> Tested message manually (I really don't see the point of add testing 
> the message to a test, only to have to remove in 13).
> % java -XX:+VMThreadHintNoPreempt -version
> Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option 
> VMThreadHintNoPreempt; support was removed in 12.0
> java version "12-internal" 2019-03-19
> Java(TM) SE Runtime Environment 19.3 (fastdebug build 
> 12-internal+0-2018-08-08-1809283.coleen.12preempt)
> Java HotSpot(TM) 64-Bit Server VM 19.3 (fastdebug build 
> 12-internal+0-2018-08-08-1809283.coleen.12preempt, mixed mode)
> Thanks,
> Coleen

More information about the hotspot-runtime-dev mailing list