This is mainly about modpacks.When i try and put in more than 1gb of ram,when i press f3 in game it says im only using around 400 mb of memor when i put in more than that.For instance i use the technic launcher and i put in 7gb of ram which should be more than enough for modpacks.But when i try and play i get these bad lag spikes every ten to 15 seconds and when i press f3 and look at the memory ,its not using nearly as much memory as i put into it.Is there a way to fix this?
MC uses the memory that it needs.