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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 30 Mar 2016 16:12:37 -0700
From:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:	Doug Smythies <dsmythies@...us.net>, 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 Wed, 2016-03-30 at 15:50 -0700, Doug Smythies wrote:
> 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).
> 
You are correct. So after a minute it changes to powersave by some
script.

Thanks,
Srinivas