Performance

Other topics Programming Web Data Tools Databases Haskell Concepts Cabal & builds Toolchain Compiler Editor & HLS

3 guides

What Is a CDN? Content Delivery Networks, Explained (2026)

Jul 18, 2026 in Programming, Web, Performance - A CDN caches your static content on servers spread around the world so visitors get it from a nearby machine. How the edge, cache hit and miss, TTL and invalidation work, static vs dynamic, and where a CDN fits with your host.

Concurrency vs Parallelism: What's the Difference? (2026)

Jul 1, 2026 in Programming, Concepts, Performance - Concurrency is structuring a program to deal with many tasks at once by interleaving them; parallelism is running many tasks at the same instant on multiple cores. The core distinction, Rob Pike's framing, threads vs async, Python (GIL) and Haskell examples, when each matters, and pitfalls.

Parallelising cabal-install: How Haskell Builds Use Your Cores

Jun 13, 2026 in Haskell, Performance - Why a build is a dependency graph, how -j builds use your cores, and the modern job-semaphore fix for oversubscription on wide dependency trees.