Ubuntu
linux package

  1. Yakkety (16.10)
  2. Bug #1518457
  3. Comment #175

Comment 175 for bug 1518457

Revision history for this message
In , sgnn7 (sgnn7-linux-kernel-bugs) wrote :

Cont'd from previous post

In order of attempts on a live system:
- gdb didn't work at all since kernel wasn't built w/ debugging flags
- hotload of 10 and 0 swappiness (from 60) didn't make the kswapd process reduce cpu usage
- hotload of vm.min_free_kbytes=64K (from 4K) didn't make the process reduce cpu usage
- hotload of vm.dirty_background_ratio=5 (from 10) didn't make the process reduce cpu usage
- hotload of vm.dirty_ratio=10 (from 20) didn't make the process reduce cpu usage
- hotload of vm.dirty_background_ratio=15 (from 5) didn't make the process reduce cpu usage
- hotload of vm.dirty_ratio=25 (from 10) didn't make the process reduce cpu usage
- live swapon on a new 256MB swapfile didn't reduce process use
- live swapoff and swapon after that also didn't drop cpu usage

Sidenote: We're using Docker so I'm not sure if that is contributing to the situation.