RFR: 8256536: Newer AMD 19h (EPYC) Processor family defaults

[Rohit Arul Raj]

On Thu, 19 Nov 2020 18:04:03 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> This patch sets the following flags as defaults for newer AMD 19h (EPYC) processors.
>>       bool UseFPUForSpilling               = true   
>>       bool UseUnalignedLoadStores    = true   
>>       bool UseXMMForArrayCopy        = true   
>>       bool UseXMMForObjInit             = true   
>>       bool UseFastStosb                       = false  
>>       bool AlignVector                          = false  
>> 
>> Additional testing: make run-test TEST="tier1 tier2" JTREG="JOBS=128" CONF=linux-x86_64-server-fastdebug
>> 
>> Please review this change.
>> 
>> Thanks,
>> Rohit
>
> Good.

@vnkozlov 

Hello Vladimir, can you please sponsor this patch?
Another query I have is that to back port this patch to JDK11 branch, will opening a RFE be enough?

Regards,
Rohit

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PR: https://git.openjdk.java.net/jdk/pull/1288