RFR: JDK-8302736: Major performance regression in Math.log on aarch64

Wed May 10 13:08:28 UTC 2023

On Wed, 10 May 2023 12:44:00 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> 

> Nice analysis, Toby. This point fix looks good to me.
> 
> As @theRealAph mentioned in the bug comments, and since there are other coarse-grained usages of `ThreadWXEnable` in the code (for example, in the `VM/JTR_ENTRY` macros), please file a follow-up RFE to improve this situation. The `ThreadWXEnable` should be as close as possible to the code that does the actual write access to the code cache.

Thanks! I filed https://bugs.openjdk.org/browse/JDK-8307817

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PR Comment: https://git.openjdk.org/jdk/pull/13606#issuecomment-1542178786