RFR: 8232107: support ThreadPriorityPolicy flag on AIX

[David Holmes]

On 12/10/2019 12:20 am, Baesken, Matthias wrote:
> Hello, please review the following small change .
> It adds  support  for the   ThreadPriorityPolicy flag on AIX   (and brings the implementation in os_aix  closer  to  what we have in os_linux ).

In that sense this is reviewed. But ...

> While  ThreadPriorityPolicy   is an "old"   flag, we have some customers using it  so it would be nice to support it  on all UNIX platforms .

"support" is a strong word. It's affects are well defined in the sense 
of what the policy will change, but it is completely untested and 
anything that messes with priority could easily induce problems inside 
the VM. Caveat Emptor.

To me this is a candidate for removal, not extended adoption.

Cheers,
David
-----

> 
> Bug / webrev :
> 
> https://bugs.openjdk.java.net/browse/JDK-8232107
> 
> http://cr.openjdk.java.net/~mbaesken/webrevs/8232107.0/
> 
> 
> Best regards, Matthias
>