Real Memory 42% vs Virtual @ 99%
One of my Linodes is always running at 99% Virtual - is that bad? The real memory is at 42% - so don't understand why it's swapping so much.
CentOS 7, LAMP install with a bunch of small wordpress sites.
Currently it's showing
Real memory 3.77 GB total / 1.59 GB used
Virtual memory 250 MB total / 249.21 MB used
Should I increase my swap size ? or increase my Linode memory?
Overall, you should not really be too concerned by how much swap is used. The more important thing is how many pages are actively being swapped in and out - lots of swapping will slow down your server's responsiveness to users. You can look at this on the swap IO graph in the Linode manager, or by using a tool like vmstat.