My *dmesg* output shows it is a plain Raspberry Pi 3B: [ 0.000000] OF: fdt: Machine model: Raspberry Pi 3 Model B
Not that it matters for me. I used it as a "desktop" system for about a week, as an experiment, before I reinstalled it with Fedora ARM Server 30 and used it as a mini-server for our house. It's a print server, an SSH-based file server, and a web server that I use to develop websites. On Wed, Mar 18, 2020 at 12:06 PM Ralf Quint <freedos...@gmail.com> wrote: > On 3/18/2020 9:44 AM, Jim Hall wrote: > > Actually, I think it's a problem on the Raspberry Pi 4. I've heard from a > few folks since the RPi4 came out that my how-to about running FreeDOS on > the Raspberry Pi (via QEMU) > <https://opensource.com/article/18/3/can-you-run-dos-raspberry-pi> results > in a very slow FreeDOS. But I've only heard from people about the Raspberry > Pi 4. The RPi3 seems to work okay. I have a Raspberry Pi 3, and it works > fine. I've run my RPi3 with both Raspbian and Fedora ARM with the same > results, so I don't think it's a distro issue, either. > > The Raspberry Pi (as lease version 3) is fast enough to emulate a '486 or > Pentium CPU well enough to run DOOM and AsEasyAs and other DOS games and > applications without lag. > > Well, what kind of Raspberry Pi3 do you have? A "plain" 3B or a 3B+? > > The 3B+ has a 1.4GHz Cortex-A53 CPU, while the 4B+ has a 1.5GHz Cortex-A72 > CPU. And given that a 4B+ is on average 4x as fast as a 3B+, with only > 0.1GHz difference in clock speed, there could be that QEMU just isn't using > the 4B+ CPU properly. > > I haven't run QEMU on my RPi4B+ (beside that it is sitting off-site at a > client right now) but everything I tested with it, in the way I intended to > use it, it was a significantly, noticeable difference. So from the plain > capabilities of the 4B+, there should be no reason why it would be so slow > in QEMU. > > Well, the GPU part of the SoC chip could of course be culprit here, now > that the 4B+ by default supports a two monitors. Can someone run a > "speedtest" between a 3B+ and a 4B+ with an application that doesn't use > any screen output to possibly verify this? > > Ralf > > PS: FWIW, I have not been able to run WCG via BOINC on the RPi4B+, getting > the message that the project doesn't have any work units for computers of > the type "arm-unknown-linux-gnueabihf", while it was running just fine on > my RPi3B+. > > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> > Virus-free. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link> > <#m_-5205383049343504348_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user >
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