RFR: 8224665: Parallel GC: Use WorkGang (7: remove task manager)

[Kim Barrett]

> On May 27, 2019, at 1:44 PM, Leo Korinth <leo.korinth at oracle.com> wrote:
> 
> Hi,
> 
> Here is the seventh patch in a proposed patch series of eight that
> removes gcTaskManager and uses the WorkGang abstraction instead.
> 
> We try to remove everything task manager and task thread related.
> 
> Some utility methods (gc_threads_do, print_gc_threads_on) are changed
> to use the WorkGang versions. Some worker counts are fetched from
> WorkGang as well. Most of the change is just code deletion.
> 
> Enhancement:
>  https://bugs.openjdk.java.net/browse/JDK-8224665
> 
> Webrev:
> http://cr.openjdk.java.net/~lkorinth/workgang/0/_8224665-Parallel-GC-Use-WorkGang-7-remove-task-manager/
>  http://cr.openjdk.java.net/~lkorinth/workgang/0/all/
> 
> Testing (on the whole patch series):
>  mach5 remote-build-and-test --build-profiles linux-x64,linux-x64-debug,macosx-x64,solaris-sparcv9,windows-x64 --test open/test/hotspot/jtreg/:hotspot_gc -a -XX:+UseParallelGC
>  gc test suite
> 
> Thanks,
> Leo

Looks good.