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Ahmed FASIH @22

Alexandrescu’s Dictum: "You must measure everything". (fasiha.github.io/post/replicat)

I thought I was being sooooooo clever here:

`varZ = var(inrange; mean=meanZ)`

giving `var` (sample variance) a pre-computed mean I had lying around. "It's gotta be faster right?"

Removed the `mean=meanZ`, letting `var` calculate the mean: runtime of my whole program is 8% faster, with *half* as many ephemeral allocations.

I am impressed with Julia's @code_warntype and @time macros
docs.julialang.org/en/release-

· Pinafore · 0 · 1
Shamar @Shamar@mastodon.social

@22

Early optimization is the root of all evils.

Every single time.

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