On Tue, Nov 24, 2020 at 6:46 PM Norman Ramsey wrote:
why wouldn't you simply allocate a fresh table?
Why try to reuse an old one?
The reusing is significantly faster:
local game_field = {}local game_size = 1000000
local function reuse_old()
for j = 1, game_size do
game_field[j] = "white"
end
for j = 1 + game_size, 2*game_size do
game_field[j] = nil
end
for j = 1 + 2*game_size, 3*game_size do
game_field[j] = "black"
end
end
local function create_new()
game_field = {}
for j = 1, game_size do
game_field[j] = "white"
end
for j = 1 + 2*game_size, 3*game_size do
game_field[j] = "black"
end
end
local t = os.clock()
for i = 1, 100 do
reuse_old()
end
print(os.clock() - t) --> 6.874127
local t = os.clock()
for i = 1, 100 do
create_new()
end
print(os.clock() - t) --> 36.050187
