I believe, Oracle JVM uses polling? This is the class responsible for safepoints... | Hacker News

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		cyberax 3 months ago \| parent \| context \| favorite \| on: Safepoints and Fil-C I believe, Oracle JVM uses polling? This is the class responsible for safepoints: https://github.com/openjdk/jdk/blob/4b544f93ad0e2beae4c80e06... And this is one of the implementations: https://github.com/openjdk/jdk/blob/4b544f93ad0e2beae4c80e06... The arming code: https://github.com/openjdk/jdk/blob/4b544f93ad0e2beae4c80e06... I might be missing something, but I'd be terribly surprised if VM games are worth it.

pizlonator 3 months ago [–]

That JVM totally uses the page protection trick.

Look at the code that talks about polling page.

cyberax 3 months ago | [–]

D'oh. I don't know how I missed it. It's right there around the line 69. Nice.

Well, I'm definitely surprised it works.

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