From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eduardo Valentin Subject: Re: [RFP] LPC thermal track Date: Fri, 27 Mar 2015 11:02:47 -0400 Message-ID: <20150327150245.GA29938@developer.hsd1.ca.comcast.net> References: <20150327000245.GA29752@developer.hsd1.ca.comcast.net> <55154361.90302@arm.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="IS0zKkzwUGydFO0o" Return-path: Received: from mail-pa0-f49.google.com ([209.85.220.49]:36709 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753345AbbC0PCu (ORCPT ); Fri, 27 Mar 2015 11:02:50 -0400 Received: by padcy3 with SMTP id cy3so98053443pad.3 for ; Fri, 27 Mar 2015 08:02:49 -0700 (PDT) Content-Disposition: inline In-Reply-To: <55154361.90302@arm.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Punit Agrawal Cc: Linux PM , Rui Zhang , Javi Merino , "cyndis@lakka.kapsi.fi" , Kapileshwar Singh , "l.majewski@samsung.com" , "geert+renesas@glider.be" , "srinivas.pandruvada@linux.intel.com" , "wxt@rock-chips.com" --IS0zKkzwUGydFO0o Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hello Punit, On Fri, Mar 27, 2015 at 11:47:45AM +0000, Punit Agrawal wrote: > Hi Eduardo, >=20 > Thanks for proposing a thermal micro-conference. It would be good to=20 > discuss the direction things are heading with regards to thermal in linux. >=20 Great! Let's see if we can get enough entropy to get it approved. > On 27/03/15 00:02, Eduardo Valentin wrote: > > Hello all, > > > > I've created a proposal for a thermal microconference track on the LPC > > 2015 [1]. The basic idea is to get thermal developers together and > > discuss the thermal role within the Linux environment, from kernel and > > userspace perspective. > > > > A initial proposal for the topics to be discussed are: > > . Closed loop control governors > > . Sensor API > > . Thermal class: split of temperature sensor device and thermal driver > > . Improvements on OF-thermal > > . Devfreq vs. clock cooling > > . Power model based policies > > . User space tools > > . User space governors > > > > If you have interest, or if you have ideas on how to improve the > > framework, reply to this email and add it to the wiki. > > >=20 > I'd like to propose - >=20 > . Co-ordination among cooling-devices in the system >=20 > In workloads that involve multiple devices such as camera+CPUs+image=20 > singal processor or camera+video encoding, etc. often there are=20 > dependencies across multiple devices' performance states to achieve=20 > minimum acceptable performance (24fps HD encode for example). When=20 > thermally constrained it would help to have some mechanisms to=20 > co-ordinate their performance control. The power allocator governor=20 > attempts to solve some of these problems but it would be good to have a= =20 > wider discussion on enabling more scenarios. >=20 Sounds good to me. It would be interesting to see if plumbing is required in the framework itself. >=20 > > Add your name in the list of participants as well. Also, if you feel > > like giving a talk on the topic, let's add it to the topic list. > > >=20 > Done. >=20 Can you please also add you name as presenter of this topic? > Cheers, > Punit >=20 > > Currently I am simple checking what would be the level of interest to > > have this topic as a LPC microconference. > > > > BR, > > > > Eduardo Valentin > > > > > > [1] - http://wiki.linuxplumbersconf.org/2015:thermal > > >=20 --IS0zKkzwUGydFO0o Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBAgAGBQJVFXENAAoJEMLUO4d9pOJWMucIAJhArk/Q0grsPnSG71ViJ0Fu ILO7BzT+OaZhscx5bQDAVv7NVmn0kX+Jca6PhyWy5vESOyafsgiOtuG0ax8ZVxl0 7mV/rApUTC7giPN5BUWBmrEB1MVCfJUnclpSNa3LekwAdPwDb8HPfT8hCgfkoWb1 HXwLGBD/4cz8z4xMJcV6DljTK5O77MX10mDVNUYZ8vNmagsloDQdhD6rIes9ce0G IqlPIvWMCyZBt7/4Tdx0amF5LgQQI8h+hJLNwW1FfXlQ6vJtVGwmDzdaB6jgUJhP 7ujXGm56TiX7kwrC3mMh9anSn2w9/t4OKXyV3OsLGFzCeo3QfJaCnQwui4GgQIk= =XO8N -----END PGP SIGNATURE----- --IS0zKkzwUGydFO0o--