Deferred reclamation, i.e., garbage collection in C++ Some assumed knowledge • You’ve heard of lock-free programming and know what a compare_exchange is • You know roughly what atomic does and what it Deferred reclamation, i.e., garbage collection in C++ Some assumed knowledge • You’ve heard of lock-free programming and know what a compare_exchange is • You know roughly what atomic does and what it -- danielanderson.net std::atomic How many lines does it take to implement a lock-free & memory-safe stack? template struct Stack { struct Node { T t; shared_ptr

Receivers Channel/Queue DLB-Assist Channel removes the penalty of CAS to achieve a safety-guaranteed, lock-free and scalable channel. Intel Confidential Department or Event Name 12 Intel Confidential MiNetRun

C++ for Concurrency Version 2 (wg21.link/n4895).  Hazard Pointers: Safe Memory Reclamation for Lock-Free Objects, IEEE Transactions on Parallel and Distributed Systems. 15 (8): 491–504, June 2004. Hazard