RFR: 8370947: Mitigate Neoverse-N1 erratum 1542419 negative impact on GCs and JIT performance [v25]

[Andrew Haley]

On Mon, 9 Feb 2026 13:00:04 GMT, Andrew Haley <aph at openjdk.org> wrote:

> > @theRealAph @shipilev @fisk Any other tests to run in addition to the suggested tests above?
> 
> It all goes back to the question I asked before. If we run this test on all Neoverse N1, not just the affected stepping, would there be any disadvantage?

Sorry, i mean if we run the same workaround code on all Neoverse N1. Why not? Would it be slower?

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PR Comment: https://git.openjdk.org/jdk/pull/28328#issuecomment-3871575377