Concurrency

Illustration of a hash map with multiple threads accessing buckets without locks.

Designing Lock-Free Concurrent Hash Maps Without Atomic Contention

A deep dive into lock‑free hash map designs that sidestep atomic contention, covering bucket partitioning, versioned pointers, and practical performance results.

Diagram of a lockless queue with multiple threads accessing it.

A Formal Verification Strategy for Concurrent Lockless Queues

A practical guide to formally verifying lockless concurrent queues, from theory to tool‑supported implementations.

Diagram of a B-Tree node being duplicated on write.

Why Copy on Write B-Trees Improve Database Concurrency

Copy‑on‑write B‑trees enable high‑concurrency database operations by allowing readers to see a stable snapshot while writers modify a new version of the tree. The article explains the underlying mechanics, performance benefits, and practical implementation tips.

Illustration of two threads exchanging data atomically.

Solving Data Races with Lock‑Free Atomic Compare‑and‑Swap

A deep dive into lock‑free programming using atomic compare‑and‑swap, covering theory, implementation patterns, and real‑world best practices.

Short description of the cover image subject.

Why Copy-on-Write Improves Memory Efficiency in High Concurrency Systems

Copy‑on‑write lets multiple threads share the same memory until a write occurs, dramatically cutting duplication and boosting throughput in concurrent systems.