[8u] Request for enhancement backport approval for CR JDK-8158012: Use SW prefetch instructions instead of BIS for allocation prefetches on SPARC Core C4

Seán Coffey sean.coffey at oracle.com
Mon Apr 16 14:02:34 UTC 2018


Muthusamy,

Apologies for the long delay here. This enhancement request looks good 
for porting to jdk8u. Please proceed with push approval request.

Regards,
Sean.

On 30/08/17 11:29, Seán Coffey wrote:
> Muthusamy,
>
> thanks for the mail. This will be evaluated and I hope to get back 
> with a decision shortly.
>
> Regards,
> Sean.
>
> On 30/08/17 10:37, Muthusamy Chinnathambi wrote:
>> Hi,
>>
>> May I get the approval of enhancement backport of 'JDK-8158012: Use 
>> SW prefetch instructions instead of BIS for allocation prefetches on 
>> SPARC Core C4' to jdk8u-dev.
>>
>> Jdk9 bug: https://bugs.openjdk.java.net/browse/JDK-8158012
>>
>> Rational: This change which adjusts the default prefetching mechanism 
>> only on Oracle SPARC Core C4 processor based systems can offer 
>> significant performance improvements.
>>
>> I have tested it with the jprt and jtreg tests.
>>
>> Regards,
>> Muthusamy C
>



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