Latest · AI Engineering
Prompt Caching: The Cheapest Win in Your LLM Bill
Prompt caching is a prefix match, and one stray timestamp can silently disable it. How cache breakpoints, TTLs and the usage fields actually work — and how to build…
5 articles
Performance Optimization
Practical Go and web development tutorials: concurrency, performance, backend architecture, testing and DevOps — with runnable code examples.
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Go Programming
Worker Pools in Go: Bounded Concurrency with errgroup
Stop spawning unbounded goroutines. A practical guide to worker pools in Go using channels, sync.WaitGroup and errgroup.SetLimit — with error propagation,…
Performance Optimization
103 Early Hints in Go, or the new Way of How to Improve Performance of a Web Page written in Go
Learn how to implement HTTP 103 Early Hints in Go 1.19+ to significantly improve web page loading performance by enabling browsers to preload resources while waiting…
Go Programming
Concurrent Map Writing and Reading in Go, or how to deal with the data races.
Learn how to effectively handle concurrent map operations in Go using sync.Map and mutex solutions to avoid data race conditions and improve application performance.
Go Programming
Ristretto - the Most Performant Concurrent Cache Library for Go
Learn how to implement Ristretto, a high-performance concurrent memory caching library for Go applications. Includes code examples comparing database access with and…