I face the same issue, running a t2.micro (1 GB) for a Nginx/Ruby application with really low demand. The kswapd0 process takes the CPU to 100% and the overall system performance is downgraded.
Linux server 4.4.0-22-generic #40-Ubuntu SMP Thu May 12 22:03:46 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux To reproduce it, I just create a 1GB file in the filesystem using "dd": if=/dev/zero of=temp bs=1k count=1024k I created a swap file to solve the issue but it continues. After dropping the page cache with: echo 3 > /proc/sys/vm/drop_caches the issue is solved temporarily. ** Attachment added: "Selection_320.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1518457/+attachment/4677030/+files/Selection_320.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1518457 Title: kswapd0 100% CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1518457/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
