From nobody Thu Jan 4 13:53:12 2024 X-Original-To: freebsd-arm@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4T5SjD5gn2z56RZS for ; Thu, 4 Jan 2024 13:53:20 +0000 (UTC) (envelope-from mike@karels.net) Received: from mail2.karels.net (mail2.karels.net [3.19.118.201]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "freebsd", Issuer "freebsd" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4T5SjC6yhlz4BH6 for ; Thu, 4 Jan 2024 13:53:19 +0000 (UTC) (envelope-from mike@karels.net) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=karels.net header.s=mail2 header.b="heRZ/hcF"; dmarc=none; spf=pass (mx1.freebsd.org: domain of mike@karels.net designates 3.19.118.201 as permitted sender) smtp.mailfrom=mike@karels.net Received: from mail2.karels.net (localhost [IPv6:0:0:0:0:0:0:0:1]) by mail2.karels.net (8.17.1/8.17.1) with ESMTP id 404DrDN8088299 for ; Thu, 4 Jan 2024 07:53:13 -0600 (CST) (envelope-from mike@karels.net) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=karels.net; s=mail2; t=1704376393; bh=A5JJoudFUSVTHY3bpfjzITUDD6s/Foxzhs0NEnSqtPo=; h=From:To:Subject:Date:In-Reply-To:References; b=heRZ/hcFMcuHyw9cvmWTkKdfUCWa5VLS4oEchcLxhZpmcDGyvBmXDf/VUFdKu/mJ8 7+I6U0FSKbJKqRPY+YX0Hs0tXk4zwmTi+kiCxEesszlI+yrvBwQbVdQSPZblnpZ/Ow 4V1A7HeXkf81FXwozmjB5DraI3Tvxt4nNv4i05LkOEHELMLZz844ukNghULdoG1v2I mvvwAFiaPMQvQh+XJstbdm47x31ANx1P6ED6OXJkvlToGObq7sv1lSg1kq9zJzvWov S2qgLqmDmj88nsBHJB54TQUdBwJa6C3GRPf9BUd57ZpIBWbgJoJ2EqFxtdbUl+kq1y 5jYjV4f6MI+bw== Received: from [10.0.2.130] ([73.62.165.147]) by mail2.karels.net with ESMTPSA id 6MiwEkm4lmXpWAEAs/W3XQ (envelope-from ) for ; Thu, 04 Jan 2024 07:53:13 -0600 From: Mike Karels To: freebsd-arm Subject: Re: enabling powerd on RPi Date: Thu, 04 Jan 2024 07:53:12 -0600 X-Mailer: MailMate (1.14r6015) Message-ID: <136EA428-CC30-4CF4-BE65-30B0CC8656AF@karels.net> In-Reply-To: References: List-Id: Porting FreeBSD to ARM processors List-Archive: https://lists.freebsd.org/archives/freebsd-arm List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arm@freebsd.org MIME-Version: 1.0 Content-Type: text/plain X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.50 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[karels.net:s=mail2]; R_SPF_ALLOW(-0.20)[+ip4:3.19.118.201]; MIME_GOOD(-0.10)[text/plain]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; FREEFALL_USER(0.00)[mike]; ASN(0.00)[asn:16509, ipnet:3.16.0.0/14, country:US]; MIME_TRACE(0.00)[0:+]; DMARC_NA(0.00)[karels.net]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; ARC_NA(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-arm@freebsd.org]; MLMMJ_DEST(0.00)[freebsd-arm@freebsd.org]; DKIM_TRACE(0.00)[karels.net:+] X-Rspamd-Queue-Id: 4T5SjC6yhlz4BH6 On 28 Dec 2023, at 13:11, Mike Karels wrote: > I am looking at enabling powerd by default on the Raspberry Pi 4 and maybe > others. There is a bug from 2021 on the subject which has gotten some recent > discussion, https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256836. Also, > problems come up from time to time about performance problems because people > don't know to enable powerd. It makes FreeBSD look much slower than Linux. > > The simplest action is to enable powerd by default on the arm64-aarch64-RPI > images. This would affect RPi 4 and variants, also RPI 3* and later RPi 2. > I enabled powerd on an RPi 3B+, and it seems to have no issues; it seems > to work. Does anyone know of a disadvantage of enabling powerd on RPI > images for all targets? The alternative would be to configure at the first > boot, although I'm not positive of a definitive way to identify the RPi > variants. Maybe just looking for a dev.cpu.0.freq sysctl node would > suffice. > > If no one objects, I will make changes to enable powerd on RPI snapshots > for 15-current, and we can see what happens. My change to enable powerd for all 64-bit Raspberry Pi systems using the arm64-aarch64-RPI image is in https://reviews.freebsd.org/D43296. There is also a review that splits RPi4 from RPi3 (etc); it is https://reviews.freebsd.org/D43141. Comments welcome. Mike