I pointed another PI user over here. He is asking about "running graphics" on his PI.

Perhaps he meant the screensaver, which as far as I know does not exist in Linux

I think he did mean the screen saver but I am not sure.

Tom

---

A proud member of the OFA (Old Farts Association).

Greetings,

Ok, how are you guys overclocking your Pi(s)? Not that I really want to overclock mine. ;)

I open "Raspberry Pi Configuration" and the overclock is greyed out. Since you guys are more attuned to Linux, perhaps there is another way?

Have a great day! :)

Siran

---

CAPT Siran d'Vel'nahr - L L & P _\\//
Winders 11 OS? "What a piece of junk!" - L. Skywalker
"Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath

Greetings,

Ok, how are you guys overclocking your Pi(s)? Not that I really want to overclock mine. ;)

I open "Raspberry Pi Configuration" and the overclock is greyed out. Since you guys are more attuned to Linux, perhaps there is another way?

Have a great day! :)

Siran

Chris posted the link in an earlier post but didn't make it active so not obvious.

Yes, running my 3B+ at stock clocks. But after watching the below video where it shows how to modify config.txt, I may kick it up to 1.5 Ghz this weekend.

https://www.youtube.com/watch?v=SWl0n-uNdLc

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Greetings,

Ok, how are you guys overclocking your Pi(s)? Not that I really want to overclock mine. ;)

I open "Raspberry Pi Configuration" and the overclock is greyed out. Since you guys are more attuned to Linux, perhaps there is another way?

Have a great day! :)

Siran

Chris posted the link in an earlier post but didn't make it active so not obvious.

Yes, running my 3B+ at stock clocks. But after watching the below video where it shows how to modify config.txt, I may kick it up to 1.5 Ghz this weekend.

https://www.youtube.com/watch?v=SWl0n-uNdLc

Hi Keith,

Ok, I watched the video. I've actually seen several from this guy. Anyway, I set my first Pi to 1450 and will leave it run and see how it does before I do anything with the other 2.

I looked at the returned WUs and most are running 5 - 6 hours, some are just over 10 hours and a couple just over 15 hours. We'll have to wait until after this current "crisis" is over to see what results I get now. :)

Have a great day! :)

Siran

---

CAPT Siran d'Vel'nahr - L L & P _\\//
Winders 11 OS? "What a piece of junk!" - L. Skywalker
"Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath

I took a big swing at the overclock right off. Seemed to work until I upped to 75% cpu usage and then they all crashed. Think I might take the gpu overclock back out as I rarely view the desktop where it would be noticeable. Maybe that will allow the higher cpu usage without errors.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Question for the Pi types. Has anyone done a comparison on the RAC between a Pi3B running 32 bit o/s and running a 64 bit O/S?
Just wondering if it is worth the time to set up.

64-bit should give you faster math, especially when the NEON hardware math is used...

One to try when I can get around to it!!!


Happy cool crunchin',
Martin

---

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

All the Pi computers so far as I know have been armv7 which is a 32 bit processor. To run a 64 bit OS would require an armv8 processor.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Cough, cough - the Pi3 B uses a 64bit ARM - to be precise:
The Raspberry Pi 3 Model B is the earliest model of the third-generation Raspberry Pi. It replaced the Raspberry Pi 2 Model B in February 2016. See also the Raspberry Pi 3 Model B+, the latest product in the Raspberry Pi 3 range.

Quad Core 1.2GHz Broadcom BCM2837 64bit CPU

---

Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

OK, corrected. I was just going by a uname -m command which reports armv71. Never bothered to look up the hardware specs for the SoC. So we are running a 32 bit OS on a 64 bit processor. See posts in the Pi forums asking when we will get a 64 bit OS and the answer was not likely ever to maintain compatibility with older hardware versions. See an experimental 64 bit Pi OS on the github forums.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

OK, corrected. I was just going by a uname -m command which reports armv71. Never bothered to look up the hardware specs for the SoC. So we are running a 32 bit OS on a 64 bit processor. See posts in the Pi forums asking when we will get a 64 bit OS and the answer was not likely ever to maintain compatibility with older hardware versions. See an experimental 64 bit Pi OS on the github forums.

Some
https://www.linux.com/news/learn/intro-to-linux/first-64-bit-and-enterprise-os-comes-raspberry-pi-3
https://archlinuxarm.org/platforms/armv8/broadcom/raspberry-pi-3
https://wiki.ubuntu.com/ARM/RaspberryPi#Ubuntu_arm64.2FAArch64
https://ubuntu-mate.community/t/aarch64-on-raspberry-pi-2-rev-1-2-3b-3b/16853
https://github.com/sakaki-/gentoo-on-rpi3-64bit
likely a lot more available as well.

OK. My comment was directed at the official Raspbian OS not ever going to be 64 bit. Thanks for the other normal Linux 64 bit installations links.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

So who is going to be the guinea pig and install a 64 bit OS and benchmark it against the same benchmark tests in the stock Raspbian 32 bit OS?

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

I don't recall if I installed the base desktop Raspbian, or desktop with recommended software / full version.

This doesn't say much if it was the regular desktop or full desktop:

PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
NAME="Raspbian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=raspbian
ID_LIKE=debian

Kernel is 4.14.79

The changes I made on Sunday:
arm_freq=1500
gpu_freq=500
over_voltage=6

The temps are usually around 48 degrees and still running 4 tasks. The USB fan to the side of it is still at the medium setting which is what it was set at before overclocking the pi.

---

~Chris

Don't know how to tell. I assume you would have a bunch of apps in each of the Desktop categories. Like more than 1 or 2 in each of the Programming, Internet, Sound & Video, Graphics. System Tools and Accessories folders.

That is all I have for the Desktop version.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Greetings,

I found a very interesting bash script for observing the Pis frequency and temp. I modified it to sleep for 5 seconds rather then every second.

Here it is:

#!/bin/bash
#
# Usage:       sh-pi-get_cpu_temp
#
# Monitors CPU clock speed and temperature.
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#

cpu_freq=/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
cpu_temp=/sys/class/thermal/thermal_zone0/temp
if [ -e $cpu_freq ] ; then
  if [ -e $cpu_temp ] ; then
    while [ true ] ; do
      clk=$(cat $cpu_freq)
      cpu=$(cat $cpu_temp)
      echo -ne $(($clk/1000))" Mhz / "$(($cpu/1000))" C \r" 
      sleep 5
    done
  fi
fi

I named mine "pi_temp.sh" and placed it in the /pi directory. I also did "sudo chmod +x pi_temp.sh" to make it executable.

This is what my Pi #1 OC reads:

-ne 1450 Mhz / 44 C 
-ne 1450 Mhz / 45 C 
-ne 1450 Mhz / 44 C 
-ne 1450 Mhz / 43 C
...

I guess that my little fans is doing a superb job of cooling the CPU running at 1.45Ghz. :) Because of the current crisis I have yet to see any change with this minor OC. I'll up it to 1.5Ghz and see if there's any noticeable change.

Enjoy the script and have a great day! :)

Siran

---

CAPT Siran d'Vel'nahr - L L & P _\\//
Winders 11 OS? "What a piece of junk!" - L. Skywalker
"Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath

A good little script. I am just using the builtin vcgencmd measure_temp command. I figured since it is crunching Seti all the time, the cpu frequency is going to be static at max. And the same for the steady state temp. So no need to run a polling loop. Just check in every once in a while from the command line when I think of it.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Greetings,

Well, a weird thing happened yesterday afternoon. After getting done with doing some World of Warcraft, I opened BOINCTasks to check things out. What!?!?!? My Pi #1 was offline, no longer connected to BT. First thing I thought of was the minor overclock. So, because that Pi controls the power strip, I shut down BOINC in the other 2 Pis and shut them down. I then went to reboot the #1 Pi. All I got was some weird pattern of blinking from the green LED. My thought of the OC diminished at that point.

I pulled the HDMI cable from the Linux box and plugged it into Pi #1, I then got my wireless keyboard/mouse dongle and plugged it in. I tried rebooting again, this time no green LED flashing. I no longer thought about the OC. I grabbed my box of Pi parts and dug out the MicroSD card the #1 used to boot from. I unplugged the SSD and plugged in the MicroSD card. I then hit the power switch and BAM! The Pi booted up. So, now I'm thinking that there may be a problem associated with the SSD.

I got the other 2 Pis booted back up and went into BT to check connections. My Win PC and Pis 2 and 3 were connected, but not Pi #1. I fiddled with it a bit and finally got a connection. Oh great! It's set to No New Tasks. I go through BT to figure out how to allow new tasks and cannot find anything in the menus. I go to Help. Oh, right click the host and select allow new tasks. Pi #1 came to life with BOINC.

I will be getting my parts, tomorrow, to finish the Linux box and upgrade the Win PC to a new graphics cards. I will then shut down all my Pis and disassemble the stack to remove the SSD. Once done and I get the stack of Pis rebuilt and back online, I will plug the SSD into the Linux box and see what I can see. I have a feeling that running a Pi on an SSD is not as straightforward as was seen in the information on websites and even the "official" Raspberry Pi website. The Pis were originally designed to run from a MicroSD card. I'm willing to bet that I will find nothing wrong with the SSD, and will decide then to continue using the MicroSD cards.

I'll post an update here, probably Friday because that is when I will have the time to get everything done. I'll get the parts too late tomorrow to do anything. Watch for it... :)

Have a great day! :)

Siran

---

CAPT Siran d'Vel'nahr - L L & P _\\//
Winders 11 OS? "What a piece of junk!" - L. Skywalker
"Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath

A good little script. I am just using the builtin vcgencmd measure_temp command. I figured since it is crunching Seti all the time, the cpu frequency is going to be static at max. And the same for the steady state temp. So no need to run a polling loop. Just check in every once in a while from the command line when I think of it.

Hi Keith,

Yeah, that's fine. As they say: "To each their own." :)

When I upped the OC to 1.5 GHz the temp only went up a degree or 2. Not too shabby. I'm going to run the script on the Linux box when I have BOINC online on it. I hope that I don't have to figure out anything because it won't work right on the Intel machine. ;)

Have a great day! :)

Siran

---

CAPT Siran d'Vel'nahr - L L & P _\\//
Winders 11 OS? "What a piece of junk!" - L. Skywalker
"Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath

For one, I would change the sleep 5, to sleep 30.
If you don't expect to see a change there is no need to poll every 5 seconds.

---

For one, I would change the sleep 5, to sleep 30.
If you don't expect to see a change there is no need to poll every 5 seconds.

Hi Brent,

Yep, too true. At the time I just didn't want it to display every other second. ;)

Have a great day! :)

Siran

---

CAPT Siran d'Vel'nahr - L L & P _\\//
Winders 11 OS? "What a piece of junk!" - L. Skywalker
"Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath