Comment 21 for bug 721896

I just thought I would shed some light on this issue. kswapd0 has nothing to do with swap space or memory. kwapd0 is the kernel process which swaps tasks. A task is any thing that has a PID (which includes threads). When kswapd0 is high, it means the kernel is spending more time context switching tasks than it is actually executing the tasks.

I don't know what's causing the issue but you're chasing a ghost if you're trying to tune your swap/memory environment.