RFR: 8295069: [PPC64] Performance regression after JDK-8290025

Mon Oct 10 14:41:33 UTC 2022

On Mon, 10 Oct 2022 14:02:09 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> I have a proposal to mitigate the performance regression (see JBS issue) on PPC64 significantly. We get most of the performance back. Please review. May also be relevant for aarch64 which I haven't checked.
> I'm checking explicitly for GCs which are known to be safe. Maybe there is a better way to check this.

This was fixed for AArch64 in JDK-8290700 - maybe it's worth adopting the `NMethodPatchingType` enum used there?

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PR: https://git.openjdk.org/jdk/pull/10632