C++ User Group — 20,000 mallocs Under the Sea: Practical C++ PMR

Setting expectations

Heap allocation isn’t "free" -- tight loops make that painfully obvious. We’ll cover std::pmr in practice: what made classic allocators awkward, how type erasure enables runtime memory policies, and when to pick monotonic vs pool resources. GNU Radio 4.0 examples include cache alignment, leak checks, and exception-safe migration of containers across resources — a pattern that also bridges Host-vs-GPU memory boundaries via SYCL USM and CUDA Unified Memory.