View Full Version : Swap File Recommendation for 18.04

October 10th, 2018, 03:49 PM
I recently upgraded from 16.04 to 18.04 with a fresh install. My system has 16GB RAM. Under 16.04 I had a swap partition of 8GB on the same disk as root that was used. With the 18.04 installation, the entire disk is only the boot partition. The swap is a 2GB file “”swapfile” in root. Considering 16.04 required 8GB, is 2GB sufficient for 18.04? Is there any advantage of using a file vice a separate partition that 16.04 used?

October 10th, 2018, 04:04 PM
The old notions about the amount of swap space required are antiquated. They came from the days when RAM was expensive and little was available on a system.

With 16GB available to you, any swap at all may be entirely unnecessary. I stopped using swap at all when I started building systems with 8GB or more of RAM. At 32 and 64GB on my home systems these days, I just don't bother.

The swap file has replaced swap as a partition in any case. I wouldn't worry about it in the least.

October 10th, 2018, 04:44 PM

October 11th, 2018, 08:02 PM
I know on Windows some things expect swap or virtual memory. I don't know if some linux apps are the same. I keep a 2gb swap just in case on every system I install.

For what it's worth, I've never seen my swap being used as per conky though.