From owner-freebsd-arm@freebsd.org Tue Nov 26 23:17:43 2019 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 A944A1C4534 for ; Tue, 26 Nov 2019 23:17:43 +0000 (UTC) (envelope-from sparvu@kronometrix.org) Received: from mail.kronometrix.org (mail.kronometrix.org [95.85.46.90]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mail.kronometrix.org", Issuer "mail.kronometrix.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 47N0Dk49GDz4NSq for ; Tue, 26 Nov 2019 23:17:42 +0000 (UTC) (envelope-from sparvu@kronometrix.org) Received: from [192.168.1.172] (176-93-193-97.bb.dnainternet.fi [176.93.193.97]) (authenticated bits=0) by mail.kronometrix.org (8.15.2/8.15.2) with ESMTPSA id xAQNHaFK009631 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 26 Nov 2019 23:17:39 GMT (envelope-from sparvu@kronometrix.org) X-Authentication-Warning: mail.kronometrix.org: Host 176-93-193-97.bb.dnainternet.fi [176.93.193.97] claimed to be [192.168.1.172] From: Stefan Parvu Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3601.0.10\)) Subject: Re: rpi3 clock drift Date: Wed, 27 Nov 2019 01:17:31 +0200 References: <486c0bc46deeefb8338f50fe6dfdf7951786e56c.camel@freebsd.org> To: "freebsd-arm@freebsd.org" In-Reply-To: <486c0bc46deeefb8338f50fe6dfdf7951786e56c.camel@freebsd.org> Message-Id: X-Mailer: Apple Mail (2.3601.0.10) X-Rspamd-Queue-Id: 47N0Dk49GDz4NSq X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of sparvu@kronometrix.org designates 95.85.46.90 as permitted sender) smtp.mailfrom=sparvu@kronometrix.org X-Spamd-Result: default: False [0.26 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-0.56)[-0.557,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; HAS_XAW(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-arm@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-0.04)[-0.041,0]; DMARC_NA(0.00)[kronometrix.org]; MV_CASE(0.50)[]; TO_DN_EQ_ADDR_ALL(0.00)[]; IP_SCORE(0.66)[ip: (0.39), ipnet: 95.85.0.0/18(1.04), asn: 14061(1.91), country: US(-0.05)]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:14061, ipnet:95.85.0.0/18, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Nov 2019 23:17:43 -0000 >=20 > Can someone else with an rpi3 (which keeps good time) confirm that > that's the usual number? this is slightly different model: rpi3+ . I think it does use a = different SOC than rpi3. krmx@k1:~ % sysctl kern.timecounter=20 kern.timecounter.fast_gettime: 1 kern.timecounter.tick: 1 kern.timecounter.choice: ARM MPCore Timecounter(1000) dummy(-1000000) kern.timecounter.hardware: ARM MPCore Timecounter kern.timecounter.alloweddeviation: 5 kern.timecounter.stepwarnings: 0 kern.timecounter.tc.ARM MPCore Timecounter.quality: 1000 kern.timecounter.tc.ARM MPCore Timecounter.frequency: 19200000 kern.timecounter.tc.ARM MPCore Timecounter.counter: 3645432288 kern.timecounter.tc.ARM MPCore Timecounter.mask: 4294967295 Stefan=