Gamemaker 2 Data Structure Performance

randomize();

var NUM_LOOPS = 100000;
var i = 0;
var label;


// Find cost of generating random numbers
label = "FOR LOOP AND RANDOM NUMBER INFRASTRUCTURE";
var dummy;
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  dummy = random(10000);
}
dbg_timerEnd(label);


label = "FILLING ARRAY (UNINITIALIZED)";
var arr;
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  arr[i] = random(10000);
}
dbg_timerEnd(label);

label = "READING ARRAY (UNINITIALIZED)";
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  dummy = arr[i];
}
dbg_timerEnd(label);


label = "FILLING ARRAY (INITIALIZED)";
var arr2 = array_create(NUM_LOOPS);
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  arr2[i] = random(10000);
}
dbg_timerEnd(label);

label = "READING ARRAY (INITIALIZED)";
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  dummy = arr2[i];
}
dbg_timerEnd(label);


label = "FILLING MAP";
var map = ds_map_create();
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  ds_map_set(map, i, random(10000));
}
dbg_timerEnd(label);

label = "READING MAP";
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  dummy = ds_map_find_value(map, i);
}
ds_map_destroy(map);
dbg_timerEnd(label);


label = "FILLING LIST";
var list = ds_list_create();
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  ds_list_set(list, i, random(10000));
}
dbg_timerEnd(label);

label = "READING LIST";
dbg_timerStart(label);
for (i = 0; i < NUM_LOOPS; i++) {
  dummy = ds_list_find_value(list, i);
}
ds_list_destroy(list);
dbg_timerEnd(label);