<ul><li>Java Virtual Threads were introduced in JDK 19 as a preview feature as part of Project Loom, fully supported starting from JDK 21.</li><li>They simplify concurrent programming, translating blocking operations into non-blocking operations.</li><li>In traditional threading model, each Java thread maps to an OS thread, causing context switching overhead.</li><li>Java Virtual Threading uses carrier threads backed by OS threads, reducing context switching at the OS level.</li><li>When CPU-bound workloads are processed, virtual threads fully utilize CPU cores, enhancing performance.</li><li>Context switching overhead is reduced, providing predictable performance, better CPU utilization, and scalability.</li><li>Comparisons between thread pool and virtual thread execution times show faster processing with virtual threads in various scenarios.</li><li>Virtual threads simplify development by offering a straightforward, synchronous style with improved observability and performance.</li></ul>

Java Virtual Threads and Scaling

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