I remember for choice of swap partition, we should use (swap > 2xRAM) at least.Of course it deprecated , because max of computer's ram is very high. kernel support it. 

**My question:** i remember each partition of swap just support 2G maximum, it means if you have 2G ram you should create 2 partition of 2G swap. *Did kernel solve it ? it mean can i create 4G swap for one partition?*