RFR: 8185062: Set AssumeMP to true and deprecate the flag

[Daniel D. Daugherty]

On 9/28/17 12:01 AM, David Holmes wrote:
> Bug: https://bugs.openjdk.java.net/browse/JDK-8185062
> Webrev: http://cr.openjdk.java.net/~dholmes/8185062/webrev/

src/hotspot/share/runtime/arguments.cpp
     No comments.

src/hotspot/share/runtime/globals.hpp
     Can you delete the extra blanks before the backslash?
     If not, no worries.

src/hotspot/share/runtime/os.hpp
     No comments.

test/hotspot/jtreg/runtime/CommandLine/VMDeprecatedOptions.java
     No comments.

Thumbs up.


> Following on from the discussion here:
>
> http://mail.openjdk.java.net/pipermail/hotspot-dev/2017-August/027720.html 
>
>
> and given the new 6 monthly release cadence, it has been decided to 
> switch AssumeMP to true and deprecate it in 18.3, with a view to 
> obsoleting it and removing all non-MP related code in 18.9.
>
> The SPARC specific setting of AssumeMP is no longer needed, and 
> os::is_MP is micro-optimized by checking AssumeMP first.
>
> CSR request: https://bugs.openjdk.java.net/browse/JDK-8188079
>
> Can I please get a reviewer for the CSR request (edit it and add your 
> OpenJDK user name to the "Reviewed by" box).

Also reviewed the CSR.

Dan

>
> I will push once the CSR request is approved.
>
> Thanks,
> David