[8u-dev] Request for enhancement backport approval for CR JDK-8131048 and JDK-8164920

[Gustavo Romero]

Hi Sean,

On 10/10/2018 05:29 AM, Seán Coffey wrote:
> Gustavo,
> 
> this is approved for jdk8u-dev.

Thank you so much.

Do I need to trigger again a RFA (I did it before this RFE approval by mistake
[1]), or this approval is already the final one and so it's ready to be pushed?


Best regards,
Gustavo

[1] http://mail.openjdk.java.net/pipermail/jdk8u-dev/2018-October/007934.html

> Regards,
> Sean.
> 
> On 05/10/18 17:21, Seán Coffey wrote:
>> Thanks for the request Gustavo. I hope to have an answer for you shortly.
>>
>> Regards,
>> Sean.
>>
>> On 05/10/18 14:06, Gustavo Romero wrote:
>>> Hi,
>>>
>>> Any news on that request?
>>>
>>> Please let me know if any bit of information is missing so I can provide it.
>>>
>>> Thanks.
>>>
>>>
>>> Best regards,
>>> Gustavo
>>>
>>> On 10/03/2018 01:00 PM, Gustavo Romero wrote:
>>>> Hi,
>>>>
>>>> I'd like to request an enhancement backport approval for JDK-8131048 [1] and
>>>> JDK-8164920 [2]  which will add support for CRC32 intrinsics on PPC64.
>>>>
>>>> Adding support for the CRC32 intrinsics on PPC64 would be highly beneficial and
>>>> important for the performance of several workloads relying on CRC32 methods and
>>>> it's specially important for some Apache Cassandra workloads on PPC64. For
>>>> instance, YCSB benchmark improves its throughput by 19 % when the CRC32
>>>> intrinsics are enabled.
>>>>
>>>> The risk involved is low and it affects only the PPC64 platform.
>>>>
>>>> JDK-8131048 and JDK-8164920 backports have been reviewed by Goetz Lindenmaier
>>>> on hotspot-compiler-dev ML [3]. The changes were tested on PPC64 LE / Linux,
>>>> PPC64 BE / Linux, and PPC64 BE / AIX. No regression was observed.
>>>>
>>>> The webrevs for OpenJDK 8u can be found in:
>>>>
>>>> "8131048: ppc: implement CRC32 intrinsic"
>>>> http://cr.openjdk.java.net/~gromero/crc32_jdk8u/v3/8131048/
>>>>
>>>> "8164920: ppc: enhancement of CRC32 intrinsic"
>>>> http://cr.openjdk.java.net/~gromero/crc32_jdk8u/v3/8164920/
>>>>
>>>> Thank you.
>>>>
>>>>
>>>> Best regards,
>>>> Gustavo
>>>>
>>>> [1] https://bugs.openjdk.java.net/browse/JDK-8131048
>>>> [2] https://bugs.openjdk.java.net/browse/JDK-8164920
>>>> [3] http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2018-October/030819.html
>>>>
>>>
>>
>