home/categories/debugging/antonykamp-cc-truffle-performance-plugin-skills-detecting-deoptimizations-skill-md
debuggingtools
detecting-deoptimizations
Traces deoptimization events where execution falls back from compiled code to interpreter. Use to detect deoptimization loops, unstable assumptions, and type instability. Zero transfers in steady-state is the goal. Many transfers indicate severe performance problems. Critical for diagnosing compilation instability.
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antonykamp
Updated 1/17/2026
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quick start
Installation and usage
Traces deoptimization events where execution falls back from compiled code to interpreter. Use to detect deoptimization loops, unstable assumptions, and type instability. Zero transfers in steady-state is the goal. Many transfers indicate severe performance problems. Critical for diagnosing compilation instability.
Installation
$ install --globalskills.sh
Usage
Once installed, you can use this skill by running the following command in your terminal:
skills use detecting-deoptimizations