How jemalloc Balances Arenas Against Thread Caches
A deep dive into jemalloc’s arena‑vs‑thread‑cache design, its runtime balancing algorithm, and practical tuning tips for developers.
Performance
When Reader-Writer Locks Leave Your Writers Starving
Reader‑writer locks promise high concurrency for reads but can silently starve writers. This post explains why, how to spot it, and practical fixes.
Why Query Planners Fail at Cardinality Estimation
A deep dive into the reasons query planners stumble on cardinality estimation, from outdated statistics to optimizer assumptions, and how to mitigate the impact.
How the MESI Protocol Resolves Stale Cache States
A deep dive into the MESI protocol, showing how it prevents stale cache states through precise state transitions and real‑world examples.
Where Extents Outperform Traditional Block Allocation Strategies
A deep dive into extents versus classic block allocation, showing why modern filesystems favor extents for speed and scalability.