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LevelUp++

Ghost
leveluppp.ghost.io· irregular· Inactive for over a year

A deep-dive technical newsletter by a compiler and performance engineer covering benchmark pitfalls, JIT and compiler optimizations, and CPU-level effects like loop alignment in Go and C#. Readers get concrete explanations of why benchmarks mislead and how generated assembly and IL explain surprising performance results.

benchmarksbenchmark golfloop optimizationsloop cloningloop hoistingc# jitdotnet performancego benchmarksloop alignmentassemblyil bytecodebounds check elimination
Platform
Ghost
Frequency
Irregular
Latest issue
Aug 7, 2021
Language
English
Written for
Experienced software engineers interested in low-level performance and compilers
Tone
analytical
Tracked since
Oct 26, 2026

Website: https://leveluppp.ghost.io/