--[[
----------
Time taken: 0.38085579872131s
Reps: 1000000
Average time: 380ns
----------
Time taken: 0.1891758441925s
Reps: 1000000
Average time: 189ns
]]
function floorIt()
    local n = math.random()*2;
    return math.floor(n) == 0;
end

function almostZero()
    local n = math.random()*2;
    return n < 1e-2;
end

unitValue = {
    ms = 1e3;
    us = 1e6;
    ns = 1e9;
}
function secondsTo(unit, numSecs)
    return ""..math.floor(numSecs*unitValue[unit])..unit;
end

function timeTest(unit, f, reps, ...)
    local ti = tick();
    for i = 1, reps do
        f(...);
    end
    local t_total = tick() - ti;
    print('----------');
    print("Time taken: "..t_total.."s");
    print("Reps: " .. reps);
    print("Average time: "..secondsTo(unit, t_total/reps));
end

timeTest('ns', floorIt, 1000000);
timeTest('ns', almostZero, 1000000);