linux-kernel - RE: [intel-pstate driver regression] processor frequency very high even if in idle

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Date:	Wed, 30 Mar 2016 15:50:08 -0700
From:	"Doug Smythies" <dsmythies@...us.net>
To:	"'Srinivas Pandruvada'" <srinivas.pandruvada@...ux.intel.com>,
	<sedat.dilek@...il.com>,
	"'Rafael J. Wysocki'" <rafael.j.wysocki@...el.com>,
	'Jörg Otte' <jrg.otte@...il.com>
Cc:	"'Linux PM List'" <linux-pm@...ts.linux-foundation.org>,
	"'LKML'" <linux-kernel@...r.kernel.org>
Subject: RE: [intel-pstate driver regression] processor frequency very high even if in idle

On 2106.03.30 15:19 Srinivas Pandruvada wrote:
>> 
>> Please see attached files.
>> 
> Thanks. Your logs make sense. You have config set to performance mode
> by default (Which I believe default in all kernel Ubuntu).

Yes, but via a startup script, by default Ubuntu sets the governor
to powersave 1 minute after boot (or ondemand if acpi-cpufreq).

> So as
> expected Intel P state was asking for max. So there is no issue here.

Yes, your point is valid, as this does not appear to be a Ubuntu kernel
configuration file, as the size is not correct.

Should be:
-rw-r--r--  1 doug doug 194436 Mar 26 18:59 ../temp-k-git/linux/.config-4.6.0-040600rc1-generic
Is:
-rw-r--r-- 1 doug doug 134944 Mar 30 15:21 config-4.6.0-rc1-11-iniza-small