<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>On my Ubuntu 15.04 running 3.19 I have found that having swap can be a real problem. I think this has a lot to do with Chrome. I have 8G on the machine and when coming back from screen saver or other tasks response takes a substantial drop. I know it is swapping pages. Disabling swap solves this problem. I ran my desktop over a month with no swap and forgot to turn it off after a reboot. I just had to wait 5 minutes so it would become responsive again.</div></div></body></html>