This was a comment from another user and it reminded me of this CPU usage increase might not hurt to try. Good Luck
An Ubuntu bug [c] was consequently filed on Launchpad. The primary effect is high CPU load in kernel as well as user processes.
This bug affects all supported versions of Ubuntu. Note that this bug is very widespread, impacting almost all modern Linux operating systems.
A fix is currently being prepared for this issue. As a workaround for affected systems, either of the following actions should alleviate the CPU load:
- Execute the following command as root (or prepend ‘sudo’ if non-root):
date -u -s “$(date -u -R)”
The permanent fix will be in the kernel well before the next leap second (as yet unannounced), which will be a minimum of six months away most likely in 2015.
Do not hesitate to contact Canonical Support if you require further help. You can do this via a support case within Landscape (https://landscape.canonical.com) or by phone (numbers listed in Landscape).
The Canonical Support Services Team
: Leap second - Wikipedia
[c]: Bug #1020285 “Addition of leap second causes spuriously high CPU...” : Bugs : linux package : Ubuntu
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