Comment 23 for bug 1188647

@Colin:
I am not sure who you are asking to "see if these help". For my part of it, I pretty much only use the most recent RC kernel (well I am still on 4.2RC6), and pretty much only with a version if the intel_pstate driver that includes a proposed patch set that I submitted on 2015.04.11, but that is still on hold. See: http://permalink.gmane.org/gmane.linux.power-management.general/58958

The basic control algorithms of the current version of the intel_pstate driver have been stable for quite sometime now (even though I still have concerns). I do not know what changes had not previously been backported to kernel 3.13, nor what issues people were having, so am unable to comment further.