On Sun, 1 Jul 2012, Curt, WE7U wrote:
I was experiencing VERY high CPU load, mostly system CPU usage, from my
mythtvbackend daemon. It started yesterday or perhaps even the day before.
Firefox was also causing very high CPU load but only for 30-45 seconds on a
periodic basis. Mythtvbackend's CPU usage was continous, causing a CPU load
of 20 - 25! That makes the system somewhat unresponsive.
The fix turned out to be killing/restarting NTPD. It seems a leap-second was
added recently which threw NTP for a loop. Others may be experiencing
similar. Kill/restart that daemon. It's a hard one to track down from system
monitoring. I found the root cause via some Google searches this morning.
Reading more about it, this seems to be the recommended simplest fix, rather
than rebooting:
/etc/init.d/ntp stop
ntpdate 0.us.pool.ntp.org
/etc/init.d/ntp start
I may have to VPN into work to see how my servers are getting along there.
--
Curt, WE7U. http://www.eskimo.com/~archer
The world DOES revolve around me: I picked the coordinate system!"
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