Benchmarks between globals and locals.

local clock = os.clock()

for _ = 1, 10000 do
    hello = true
    hello2 = true
    hello3 = true
    hello4 = true
    hello5 = true
    hello6 = true
    hello7 = true
end

print(os.clock() - clock, "globals")

local clock2 = os.clock()

for _ = 1, 10000 do
    local hello = true
    local hello2 = true
    local hello3 = true
    local hello4 = true
    local hello5 = true
    local hello6 = true
    local hello7 = true
end

print(os.clock() - clock2, "local")