Certainly interesting, but not really useful IMO. Instructions that are *present... | Hacker News

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		dspillett on June 23, 2015 \| parent \| context \| favorite \| on: X86 Machine Code Statistics Certainly interesting, but not really useful IMO. Instructions that are present very rarely might be executed far more frequently if they are within a loop, particularly a tight number-crunching loop. I suspect that MOV instructions would still dominate but that you would see then "minorities" within the instruction set getting more representation in the stats.

jeremiep on June 23, 2015 [–]

Same goes for optimizations, where we assume 80% of the time is spent in 20% of the code.

We just finished profiling our 1M LOC C++ codebase and it shows even more extreme numbers; we hit close to 95% of the time spent in 5% of the code.

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