silly optimizers

local unit, weapon


function doSomething()
    _G['lol'] = 1
end


ArmedUnits = {}
Units = {}
Weapons = {}
for i=1, 90000,1 do
    ArmedUnits[i] = { unit = 5, weapon = 5 }
    Units[i] = 5
    Weapons[i] = 5
end


t1 = os.clock()

for i=1, 90000,1 do
    if Units[i] == Weapons[i] then doSomething() end
end

t2 = os.clock()

for i=1, 90000,1 do
    unit = ArmedUnits[i].unit
    weapon=ArmedUnits[i].weapon
    if unit == weapon then doSomething() end
end

t3 = os.clock()


print( "Method 1: " .. t2-t1 )
print( "Method 2: " .. t3-t2 )



-- Output:

C:\Misc\binlua>lua52 test.lua
Method 1: 0.016
Method 2: 0.019

C:\Misc\binlua>lua52 test.lua
Method 1: 0.016
Method 2: 0.019

C:\Misc\binlua>lua52 test.lua
Method 1: 0.015
Method 2: 0.02

C:\Misc\binlua>lua52 test.lua
Method 1: 0.016
Method 2: 0.019

C:\Misc\binlua>lua52 test.lua
Method 1: 0.016
Method 2: 0.02

C:\Misc\binlua>lua52 test.lua
Method 1: 0.015
Method 2: 0.02