nodejs-cpu-cache

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nodejs-cpu-cache

Examples showing the impact of cache misses in an interpreted language

$ time node cache-friendly.js
node cache-friendly.js  0.59s user 0.16s system 101% cpu 0.738 total
$ time node cache-unfriendly.js
node cache-unfriendly.js  1.04s user 0.13s system 101% cpu 1.145 total

perf stat -B -e cache-references,cache-misses,cycles,instructions,branches,fault -- node --interpreted-frames-native-stack --perf-basic-prof cache-unfriendly.js

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