[Bug 30557] Re: cpu idle time in /proc/stat wrong

[Pausanias]

Note that this workaround causes a performance hit in my cpu-intensive
apps, so it's not really an acceptable solution.

> Setting the max cpu C-state to C2 
> (it spends most of it's time in C3 by default) using:

> echo 2 > /sys/module/processor/parameters/max_cstate

> Causes the /proc/stat values start to increase by
> reasonable values and more importantly cpufreq_conservative
> actually starts to scale the cpu speed when idle.

-- 
cpu idle time in /proc/stat wrong
https://launchpad.net/bugs/30557