[jdk11u-dev] RFR: 8280007: Enable Neoverse N1 optimizations for Arm Neoverse V1 & N2 [v2]

[Andrew Haley]

On Wed, 3 Jan 2024 09:55:23 GMT, Liang Mao <lmao at openjdk.org> wrote:

>> Backport of JDK-8280007. The change should be enabled in JDK11 better performance on Neoverse V1/N1/N2. It is quite safe for existing in upstream and 17u for years.
>> 
>> Additional testing: aarch64 server ARM Neoverse N2 release/fastdebug tier1
>
> Liang Mao has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:
> 
>  - Merge remote-tracking branch 'jdk11dev/master' into backport-mmyxym-f823bed0
>  - Backport f823bed043dc38d838baaf8c2024ef24b8a50e9b

OK. On further contemplation, this falls within the scope of a change intended to keep the JDK working well as the world moves on. It doesn't set any precedents for other performance backports.

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Marked as reviewed by aph (Reviewer).

PR Review: https://git.openjdk.org/jdk11u-dev/pull/2425#pullrequestreview-1810877415