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A comment on KolibriOS – operating system written entirely in assembly language. Parent comment

Re:KolibriOS – operating system written entirely in assembly... by pjmlp on Wednesday April 15, 2020 @09:35AM (#22877495)
There are some LLVM optimization talks that show otherwise, where longer vectorized code actually runs faster than the smaller version, though.
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Re:KolibriOS – operating system written entirely in assembly... by userbinator on Wednesday April 15, 2020 @09:46AM (#22877622)
...in microbenchmarks.

That's what created multi-kilobyte memcpy() implementations, which barely beat REP MOVSB but cause huge icache bloat.

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