-- FPS --------------------------------------------- 
PerformanceOutput = {}; PerformanceOutput.mt = {};
PerformanceOutput.mt.__index = PerformanceOutput;
-----------------------------------------------------
-- LOCAL VARS ---------------------------------------
local screenW, screenH = display.contentWidth, display.contentHeight 
local prevTime = 0;
local maxSavedFps = 30;
----------------------------------------------------------------------------- FPS Start
local function createLayout(self)
        local group = display.newGroup(); group.x = group.x + 90; group.y = group.y + 15;group:scale(1.5,1.5);
        self.memory = display.newText("0/10",20,0, Helvetica, 15);
        self.framerate = display.newText("0", 30, self.memory.height, "Helvetica", 20);
        local background = display.newRect(-50,0, 175, 50);
        self.memory:setTextColor(255,255,255);
        self.framerate:setTextColor(255,255,255);
        background:setFillColor(0,0,0);
        group:insert(background);
        group:insert(self.memory);
        group:insert(self.framerate);
        return group;
end
 
local function minElement(table) local min = 10000;
 for i = 1, #table do 
         if(table[i] < min) then 
                min = table[i]; 
         end; 
 end;
 return min; 
 end
 
local function getLabelUpdater(self)
        local lastFps = {};
        local lastFpsCounter = 1;
        return function(event)
                        local curTime = system.getTimer(); local dt = curTime - prevTime;
                        prevTime = curTime; local fps = math.floor(1000/dt);
                        lastFps[lastFpsCounter] = fps; lastFpsCounter = lastFpsCounter + 1;
                        if(lastFpsCounter > maxSavedFps) then lastFpsCounter = 1; end
                        local minLastFps = minElement(lastFps); 
                        self.framerate.text = "FPS: "..fps.."(min: "..minLastFps..")";
                        self.memory.text = "Mem: "..(system.getInfo("textureMemoryUsed")/1000000).." mb";
        end
end
local instance = nil;
 
function PerformanceOutput.new()
        if(instance ~= nil) then return instance; end
        local self = {};setmetatable(self, PerformanceOutput.mt);
        self.group = createLayout(self);
        Runtime:addEventListener("enterFrame", getLabelUpdater(self));
        instance = self;return self;
end
 
local maxSavedFps = 60;PerformanceOutput.new();
---------------------------------------------------- end FPS
-- Create 2000 nested Display Groups insert 1 obj-------------
-------------------------------------------------------------- 
local display_main = display.newGroup()
local pos = {}
pos = {x=200, y=200, num=10}
local display_nest ={}
for i=1, 2000 do
                display_nest[i] = display.newGroup()
        if i==1 then 
        display_main:insert(display_nest[i])
        else
        display_nest[i - 1]:insert(display_nest[i])
        end
end
 print(display.contentWidth)
local myRec = display.newRect(display.screenOriginX + (display.contentWidth/5.5), display.contentHeight/4, 200, 200)
myRec:setFillColor(255, 0, 0,80); myRec:setStrokeColor(255, 255, 255);myRec.strokeWidth =2;
myRec.text = display.newText("I Have NO Touch Events!",myRec.x - 160,myRec.y - 140, Helvetica, 27);
myRec.text2 = display.newText("TOUCH ME",myRec.x - 95,myRec.y - 30, Helvetica, 32);
display_nest[2000]:insert(myRec)