Do you mean your swap file usage is 0% while running v11.7 or v11.8? I'm not sure exactly, but I think the DAG files are VM intensive when the miner is first starting up, so that may not be unusual.
A reliable source recommends 2.6gb per card, plus another 10 or 12.
@bigdaddymccarron, could it be your swap file is not big enough for the DAG files? I'm no expert on Ubuntu, but sometimes we overlook the simplest things.
I will check that, I saw something the other day that indicated it should be 22 gb.
When I check swap usage, 0% is being used.
I had to revert back to v11.7 on my Linux mining rig because v11.8 keeps crashing even after reducing the overclock speeds. On v11.7 I can run my normal overclock speeds and the miner is much more stable. Has anyone else had any stability issues on Linux? My 4 Windows 10 miners seem to be working fine.