From owner-freebsd-arm@freebsd.org Fri Mar 19 17:43:59 2021 Return-Path: Delivered-To: freebsd-arm@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id B9D9857C8B9 for ; Fri, 19 Mar 2021 17:43:59 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (www.zefox.net [50.1.20.27]) (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 "www.zefox.com", Issuer "www.zefox.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4F2B8Z4l53z3MXQ for ; Fri, 19 Mar 2021 17:43:58 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (localhost [127.0.0.1]) by www.zefox.net (8.16.1/8.15.2) with ESMTPS id 12JHhx9Z038932 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Fri, 19 Mar 2021 10:44:00 -0700 (PDT) (envelope-from fbsd@www.zefox.net) Received: (from fbsd@localhost) by www.zefox.net (8.16.1/8.15.2/Submit) id 12JHhxDb038931; Fri, 19 Mar 2021 10:43:59 -0700 (PDT) (envelope-from fbsd) Date: Fri, 19 Mar 2021 10:43:59 -0700 From: bob prohaska To: Mark Millard Cc: freebsd-arm , bob prohaska Subject: Re: RPI4 clock speeds and serial port ( temperatures idle and -j4 buildworld buildkernel ) Message-ID: <20210319174359.GA38899@www.zefox.net> References: <20210318170053.GA26688@www.zefox.net> <9FFA0A51-C0B7-4121-95CA-B98669809007@yahoo.com> <81AC0353-258C-41C3-86B1-C133E33D97E3@yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <81AC0353-258C-41C3-86B1-C133E33D97E3@yahoo.com> X-Rspamd-Queue-Id: 4F2B8Z4l53z3MXQ X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of fbsd@www.zefox.net has no SPF policy when checking 50.1.20.27) smtp.mailfrom=fbsd@www.zefox.net X-Spamd-Result: default: False [-1.10 / 15.00]; RCVD_TLS_ALL(0.00)[]; ARC_NA(0.00)[]; WWW_DOT_DOMAIN(0.50)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[zefox.net]; RBL_DBL_DONT_QUERY_IPS(0.00)[50.1.20.27:from]; AUTH_NA(1.00)[]; SPAMHAUS_ZRD(0.00)[50.1.20.27:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; R_SPF_NA(0.00)[no SPF record]; FREEMAIL_TO(0.00)[yahoo.com]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:7065, ipnet:50.1.16.0/20, country:US]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-arm]; MID_RHS_WWW(0.50)[] X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Porting FreeBSD to ARM processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Mar 2021 17:43:59 -0000 On Thu, Mar 18, 2021 at 10:14:26PM -0700, Mark Millard wrote: > > World build completed on Thu Mar 18 21:31:44 PDT 2021 > World built in 29705 seconds, ncpu: 4, make -j4 > . . . > Kernel build for GENERIC-NODBG completed on Thu Mar 18 22:10:02 PDT 2021 > Kernel(s) GENERIC-NODBG built in 2298 seconds, ncpu: 4, make -j4 > > So somewhat under 9 hours. > So my figures (~17 hours) seem reasonable for a default clocking. I thought maybe I'd done something wrong. For now I'll leave the clocking alone. But some puzzles remain: It appears that the CPU and the GPU have separate clocks. Can they be set separately, and does the GPU have any practical effect on FreeBSD's behavior once boot is complete? Thanks for writing! bob prohaska