RFR (M) #4 CR 8003985: Support @Contended annotation

[Kirk Pepperdine]

Hi ```````````````````````````````````````````````````````````````````````````````````````````````````````Alan,

I believe to answer your question one would have to answer a broader question; is it in the long term direction to expose these low level operations to the general developer population or, will these "optimizations" be some how rolled into HotSpot where developers have traditionally expected them to be implemented. If there is a change in philosophy where by the JDK will expose these low level operations then I'd agree with you. However, should we not be asking the bigger question first?

Regards,
Kirk

On 2012-12-21, at 11:40 AM, Alan Bateman <Alan.Bateman at oracle.com> wrote:

> On 21/12/2012 10:20, Aleksey Shipilev wrote:
>> Hi,
>> 
>> This is the final call for reviews for @Contended:
>>   http://cr.openjdk.java.net/~shade/8003985/webrev.00/
>> 
>> Testing:
>>  - Test8003985 passes on Linux x86_64
>>  - JPRT full cycle passed
>>  - VM adhoc tests are underway, but should be the same as previous
>> passed run, since there are no semantical changes
>> 
>> JEP-142 is in Funded state:
>>  http://openjdk.java.net/jeps/142
>> 
>> Thanks,
>> Aleksey.
> Has sun.misc.Contended been decided? I really think this needs to be moved to somewhere that can be supported, like jdk.vm.Contented. I did bring this up on c-i and Doug replied, I just haven't had the time to follow up on it.
> 
> -Alan