What are the !native, !optimize and such other lines?

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This thread is scarily similar to what I made just before this post

qPerfectionWeld 2.0

Why are you using ipairs if it is literally slower than not using it? 11:45:39.994 > --!native --!optimize 2 local warmup_iterations = 10_000 local iterations = 1_000_000 local goons = 1000 -- Number of elements in the table local t = {} for i = 1, goons do t[i] = i end -- Warmup for _ = 1, warmup_iterations do for i, v in t do end for i, v in ipairs(t) do end end -- ipairs do local clocked = os.clock() for _ = 1, iterations do for i, v in ipairs(t) do end end print("ipairs:",…

I was wondering why my benchmark had such a big performance gap in between each one then I remembered --optimize 2 But I didn’t know what it did So I tried it and now it is more accurate