So What Has RCU Done Lately?

(Paul McKenney, Boqun Feng, Frédéric Weisbecker, Joel Fernandes, Neeraj Upadhyay, Uladzislau Rezki) Read-copy update (RCU) has been part of the Linux kernel for more than twenty years, and Paul has been working on RCU for about 30 years. So what has RCU done lately?
This presentation will cover new features in the Linux kernel, primarily the polled RCU grace-period primitives that allow hardware interrupt handlers and even NMI handlers to interact with RCU grace periods. Other topics include new flavors of RCU for BPF and tracepoints, new energy-efficiency features, callback-offloading at runtime, RCU flavor consolidation, SRCU's memory diet, improved fire-and-forget freeing, and much more.
Outside of the Linux kernel, there has been progress getting RCU added to C++ and perhaps also to the Rust language. There are also a number of userspace libraries providing RCU.
2023.everythin...
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Wed Mar 15 10:45:00 2023 at Clarendon Auditorium