Fix 100% System CPU Usage
If you see your Linux CPU utilization spike to 100% system (kernel) on
all cores, you may be running into a "Transparent Hugepage"
issue. Just execute the following as root to disable the problematic,
echo never > /sys/kernel/mm/transparent_hugepage/defrag
This feature of the Linux kernel is widely reported to have issues
with 3.6 kernels. It is especially noticeable when running Java code
that does large disk reads or writes.
Last modified on 30 Jul 2015 by AO
Copyright © 2020 Andrew Oliver