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		kllrnohj on Nov 16, 2021 \| parent \| context \| favorite \| on: Java Virtual Threads Preview Maybe maybe not. If you want to take advantage of things like io_uring you're going to be doing that with a JNI lib. Such as this Netty incubator support for it https://github.com/netty/netty-incubator-transport-io_uring Also all of the existing JVM IO is done with JNI. How do you think java.io is implemented itself? Of course Loom can change those implementations, but strictly speaking JNI is currently extremely common for Java IO. How big of a task supporting virtual threads for the Java libraries remains to be seen, especially for the unofficial extensions like the sun.nio.* package

jpgvm on Nov 16, 2021 [–]

Very likely such a thing will be pinned to a few OS threads and then interact with a virtual thread pool to farm out work.

In general most Java I/O is native because it's "sufficiently fast" for such things. Netty is the exception rather than the rule in this regard.

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