RFR (M): CR 8003985: Support @Contended Annotation - JEP 142

[Aleksey Shipilev]

Anyone?

Thanks,
Aleksey.

On 11/27/2012 09:57 PM, Aleksey Shipilev wrote:
> Hi,
> 
> This is the daizy-fresh thread for reviewing the actual changes to
> support the JEP-142 in HotSpot. Please address API issues about
> @Contended to concurrency-interest list, Doug had started the thread here:
> 
> http://cs.oswego.edu/pipermail/concurrency-interest/2012-November/010208.html
> 
> We are not discussing the design, API and all the general stuff here,
> only the reference implementation. I would like to have someone extra
> knowledgeable in HotSpot codebase to see whether I do anything stupid there.
> 
> The webrev for the change is here:
>   http://shipilev.net/pub/jdk/hotspot/contended/webrev-4/
> 
> Notable differences against latest version:
>   - a little denser packing in some corner cases
>   - support @Contended for static fields
>   - moved @Contended to sun.misc (go and nag at c-i@ about this)
>   - bugfixes
> 
> Testing:
>   - hotspot/test/runtime/8003985/Test8003985 on Linux x86_64
>   - jprt, specjvm98 quick run
>   - jprt full cycle is underway, looking good
> 
> Thanks,
> Aleksey.
>