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Thu, 25 Nov 2021 19:29:41 +0000 Received: by kubenode545.mail-prod1.omega.gq1.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 6c704fb1cc77d51b052d74db76cf0014; Thu, 25 Nov 2021 19:29:39 +0000 (UTC) Content-Type: text/plain; charset=us-ascii 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 (Mac OS X Mail 14.0 \(3654.120.0.1.13\)) Subject: Re: 13.0-RELEASE Poor performance on Raspberry pi 3 B+ In-Reply-To: Date: Thu, 25 Nov 2021 11:29:38 -0800 Cc: Free BSD , bob prohaska Content-Transfer-Encoding: quoted-printable Message-Id: References: <20211124155352.GA26072@www.zefox.net> <6CCD061E-DCDA-46E0-AE19-76EA1B30E56F@yahoo.com> <69E3CEF1-87D0-405B-B132-7D6A6A4EA056@yahoo.com> <1229E940-5DAB-4D49-AB14-E804296D10BC@yahoo.com> To: Juan David Hurtado G X-Mailer: Apple Mail (2.3654.120.0.1.13) X-Rspamd-Queue-Id: 4J0Sck6L84z4tSF X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] Reply-To: marklmi@yahoo.com From: Mark Millard via freebsd-arm X-Original-From: Mark Millard X-ThisMailContainsUnwantedMimeParts: N On 2021-Nov-25, at 09:55, Juan David Hurtado G = wrote: >=20 >> There are: v1.1, V1.2, and v1.4 revisions of that. >> Which? >=20 > Raspberry Pi 3 Model B Plus Rev 1.3 > Raspberry Pi 4 Model B Rev 1.1 In a few days I likely will have access to a 4 GiByte RPi4B Rev 1.1 . >> This is not what I've been using (2021.04) but I no >> longer remember whatever I knew about the differences >> in behavior. >=20 > I've made a firmware update using `rpi-update` on the rpi 3 and > `rpi-eeprom-update` on the rpi 4 (while on raspios). > Same 0.4MHz so far on both of them when using FreeBSD. >=20 > As for the label on the SoC... I have heat sinks in both of them :) > I wonder if there is a command that I can use to get that information > without removing the heat sinks. For the RPi4B: being an older variant (v1.1) would mean 2711ZPKFSB06BOT . 2711ZPKFSB06COT only showed up more recently. (I'm not aware of any software query equivalent to the labeling on the SOC. But not being Rev 1.4 (or later), finding the label explicitly should not matter.) For the RPi3B+: I'm not aware of ever needing to know any labeling on the SOC. I focus on the RPi4B's as I at least have access to a variant and should soon have access to a match. No RPi3's currently and I've never had access to a RPi3B+. There haev been past reports of RPi3B+ oddities on the lists as I remember. I normally do my own buildworld buildkernel and install such. I build with tailoring, such as -mcpu-cortex-a72 for targeting RPi4B's and other Cortex-A72 systems. Thus my normal context would not match in an audit vs. your context. And I've picked other things like RPi* firmware versions based on experiments. (Various releases have historically been problematical.) Other than running one USB related bug in FreeBSD via my -mcpu=3Dcortex-a72 builds, I've not had mismatches in behavior in general. When I've access to a 4 GiByte RPi4B Rev 1.1 I'll produce a microsd card from an official 13.0-RELEASE image (so no -p? at the time) and see what happens when using it to boot the 4 GiByte RPi4B Rev 1.1 . I'll look up the eeprom version in use in the RPi4B Rev 1.1 when I have access and report what it is. I definately updated it in order to have the usb (no microsd card) style of booting be possible. It will be another thing to compare. (It is also something that an installed-files audit can not cover.) So far the one notable difference in our context's is your context's U-Boot 2020.10 vs. the 2021.04 in my context. I can capture a binary byte sequence of the output of a boot, such as verbose one. Looking for differences in such might prove useful, given well matching contexts if my results do not match yours for the frequency involved. =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)