APIs, services and the data layer behind them.
6 items
I ran wall-clock, Lamport, hybrid and vector clocks through one simulated workload. Logical clocks removed the skew mistakes, yet 0.5% of writes still vanished. Only vector clocks kept them all.
Why does Postgres skip indexes? On a 5M-row table the default planner picked a bitmap scan up to 1.85x slower than a sequential scan, and physical column order mattered more than selectivity.
Go 1.27 ships a portable SIMD API with zero published benchmarks. Measured on real hardware: a plain loop wins below 256 elements, then SIMD holds a steady ~2x, not the 8x its lane count implies.
A beginner-friendly comparison of RDF triples (SPARQL, OWL) and property graphs (Cypher), checked on one fact, one class hierarchy and a 1M-edge graph, with runnable code.
How gRPC decides which backend gets each call, why a TCP-level load balancer leaves servers idle, and four ways to fix it. Every distribution number comes from a local experiment you can rerun.
Four ways to build an API, compared on who decides the response shape, what the contract looks like, how errors and caching work, and how big the bytes are, with a size measurement you can rerun.