RFR: 8368251: Parallel: Refactor lgrp_id used in MutableNUMASpace [v2]

[Thomas Schatzl]

On Wed, 24 Sep 2025 06:05:37 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Joel Sikström has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Don't set lgrp_id on Windows since we don't support NUMA there
>
> src/hotspot/os/windows/os_windows.cpp line 543:
> 
>> 541:     }
>> 542:   }
>> 543: 
> 
> I recommend asserting that `UseNUMA` is false here, with a message like `Should set NUMA id here` to not miss this later.
> I prefer trying to formalize code assumptions.

Or just a "must be" :)

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PR Review Comment: https://git.openjdk.org/jdk/pull/27424#discussion_r2374519984