https://www.pistack.xyz/tags/hash-map/ Recent content in Hash-Map on Pi Stack Hugo en-us Fri, 19 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-19-concurrent-hashmap-libraries-dashmap-flurry-evmap-folly/ Fri, 19 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-19-concurrent-hashmap-libraries-dashmap-flurry-evmap-folly/ <p>Modern multi-threaded applications demand data structures that scale across CPU cores without bottlenecks. A standard <code>HashMap</code> wrapped in a mutex becomes a serialization point — only one thread can access the map at a time, killing performance under contention. Concurrent hash map libraries solve this by allowing multiple threads to read and write simultaneously using lock-free algorithms, fine-grained locking, or sharding.</p>