On Mon, Nov 23, 2020 at 9:59 PM Petri Häkkinen wrote:
Are pure dictionaries also affected?
Yes.
$ cat pure_dict.lua local game_field = {}
local game_size = 2^20 -- 2^20 is fast, but (2^20-1) is VERY slow
local size_delta = tonumber(arg[1])
game_size = game_size + size_delta
print("size = 2^20 + "..size_delta)
local function initialize_game_field()
for j = 1, game_size do
game_field["cell#"..j] = "white"
end
for j = 1 + game_size, 2*game_size do
game_field["cell#"..j] = nil
end
for j = 1 + 2*game_size, 3*game_size do
game_field["cell#"..j] = "black"
end
end
initialize_game_field()
$ time lua pure_dict.lua 0
size = 2^20 + 0
real 0m11.143s
user 0m9.416s
sys 0m0.296s
$ time lua pure_dict.lua -1
size = 2^20 + -1
(Could not wait so long to get the result time)
