Devnexus 2022 - What's Looming in Java The Why and What of Project Loom - Venkat...
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Threading: • Parallel vs Concurrent 1:30 • Parallel vs Asynchronous (non-blocking) 3:30
Threads: • Threads are lightweight 5:50 • But, "lightweight" is relative 7:00 • How many threads can/should you create? 7:30 • Depends on the amount of memory and number of cores 10:00 Multi-Threading, eh?: • Sequential execution 16:00 • Existing programming model: threads tied to tasks (for the most part) 16:18 • What if a task is going to take some time? 16:18 • Create more threads? 16:18
Continuation: • Subroutines 23:45 • Coroutines 24:00 • Continuations are data structures that can remember the state of a previous call and can continue from where it left off • Useful for building conversational state • run • yield • isDone
Virtual-Threads of Java: 30:30 • Super lightweight threads • Managed by the JVM and not by the O/S 31:00 • When a virtual thread blocks, the task waits, but not the underlying thread 32:40 • Revisiting the thread limitations • Using fibers/virtual threads 37:10
Summary: 49:44 • Where does it make sense to use virtual threads? 49:44 discussions
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