RFR: 8370947: Mitigate Neoverse-N1 erratum 1542419 negative impact on GCs and JIT performance [v29]

[Evgeny Astigeevich]

On Thu, 19 Feb 2026 16:14:43 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Evgeny Astigeevich has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 45 commits:
>> 
>>  - Merge duplicated code into one fix_oop_relocations
>>  - Replace onSpinWait with sleep
>>  - Restore blank line
>>  - Rename NeoverseN1Errata1542419 flag to NeoverseN1ICacheErratumMitigation
>>  - Merge branch 'master' into JDK-8370947
>>  - Do fullGC when multiple threads execute test methods
>>  - Add jtreg TestDeferredICacheInvalidationCmdOptions
>>  - Merge branch 'master' into JDK-8370947
>>  - Merge branch 'master' into JDK-8370947
>>  - Merge branch 'master' into JDK-8370947
>>  - ... and 35 more: https://git.openjdk.org/jdk/compare/2ebd6126...b3d9e5fd
>
> src/hotspot/share/runtime/icache.hpp line 74:
> 
>> 72: };
>> 73: 
>> 74: 
> 
> Superfluous.

Restored.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28328#discussion_r2842608022