From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66EE5C3279B for ; Wed, 4 Jul 2018 20:22:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1510B24217 for ; Wed, 4 Jul 2018 20:22:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1510B24217 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753015AbeGDUWJ (ORCPT ); Wed, 4 Jul 2018 16:22:09 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:42556 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752719AbeGDUWI (ORCPT ); Wed, 4 Jul 2018 16:22:08 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 51FDC804FE; Wed, 4 Jul 2018 22:22:07 +0200 (CEST) Date: Wed, 4 Jul 2018 22:22:07 +0200 From: Pavel Machek To: Tony Lindgren Cc: kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, sre@kernel.org, nekit1000@gmail.com, mpartap@gmx.net, merlijn@wizzup.org Subject: Re: v4.18-rc1 on droid 4: very bad CPU performance Message-ID: <20180704202207.GA15246@amd> References: <20180621121542.GA4836@amd> <20180622072005.GF112168@atomide.com> <20180622074936.GG112168@atomide.com> <20180627205834.GB29478@amd> <20180628090655.GL112168@atomide.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="0F1p//8PRICkK4MW" Content-Disposition: inline In-Reply-To: <20180628090655.GL112168@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --0F1p//8PRICkK4MW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > OK. I checked and duovero runs only at 600MHz. I can only > get down to 19 seconds with omap2plus_defconfig if I disable > CONFIG_CPU_FREQ so the max speed is maintained from bootloader. > Otherwise it runs at most at 1GHz, I think any higher speeds > need smartreflex and voltage scaling working which we don't > have in the mainline kernel. Not sure what happens with higher > speeds with mainline kernel or if they are unsafe in the long > run. >=20 > Anyways, care to post your .config somewhere so I can see what > the numbers are for me with it? After reboot (same config as in previous mail), before x / ofono / unicsy_demo /... were started: user@devuan:~$ uname -a Linux devuan 4.18.0-rc3-88788-g528947b #758 SMP Wed Jul 4 10:05:21 CEST 2018 armv7l GNU/Linux user@devuan:~$ time cat /dev/urandom | head -c 10000000 | bzip2 -9 - | wc -c 10044041 11.50user 0.37system 11.57 (0m11.570s) elapsed 102.63%CPU user@devuan:~$ droid 4. Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --0F1p//8PRICkK4MW Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAls9LG8ACgkQMOfwapXb+vKkBACguD2Wcgm4Fs4kre3F2DTv5R+f BbYAn39a41KR/CDNWcpIq5PG4+ryFKzY =PZbk -----END PGP SIGNATURE----- --0F1p//8PRICkK4MW--