I have a laptop with 4 GB RAM and i3 processor. It runs very fast when I use windows, but it keeps slowing down on my Ubuntu when I use it continuously. I noticed that 500mb+ swap is getting used even if only 20% of RAM is only used, and I have a doubt that this is the reason for the slowness. I have already set the swappiness value to 10. Then how else can I change it? I spend most of my time in Ubuntu so this is very important for me.
Ubuntu – Ubuntu swappiness
12.04memoryperformanceramswap
Best Answer
Use this command to confirm that your change is being used (i.e., that it was saved permanently):
Also, maybe the swap FAQ will help.