RFR: 6942632: Hotspot should be able to use more than 64 logical processors on Windows [v3]

[Saint Wesonga]

On Wed, 28 Feb 2024 06:52:27 GMT, David Holmes <dholmes at openjdk.org> wrote:

> I'm struggling to see how we can expose more than 64 processors when our bit-vector is only 64 bits. ??

This code block does not expose over 64 processors. It only ensures that a request for less than 64 processors is respected when the user launches the process using the start command (which accepts a 64-bit mask) https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/start

More than 64 cores are exposed by the `logical_processors = processor_count();` assignment a few lines later.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17576#discussion_r1506645878