Profiling is the Highest Leverage Skill in High-Performance Engineering

Abhishekcur · x · 2026-08-07

The author emphasizes that profiling is one of the highest leverage skills in high-performance engineering. While anyone can write "optimized" code, very few can actually prove it's faster.

Real optimization is about answering core questions: Where are CPU cycles going? What is stalling the GPU? Is the system memory-bound or compute-bound? By learning to read tools like flamegraphs, perf, nsys, and ncu, engineers can stop relying on educated guessing and achieve actual performance improvements.

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