Osmocom op25 Install issues on RPi Bookworm

[boatbod]

I have an RSPDuo that is driving my SatDump install. On the OP25 setup I'm using a RTL-SDR Blog V3 dongle. I went with the default:

"rate": 1000000,

So that should not be a load, right? Maybe I'll try dropping a little more

Well, plots are not an issue since I can't get them to work on my lash-up.

I also noticed this morning that it seems that when I have the VNC window up I'm using for the headless Pi the temp starts climbing. If I minimize the window the temp goes back down. Since I went with a new install of Raspbian (Bookworm) it is using Wayland for the desktop. I'm wondering if going back to X11 would help?

I've also noticed that sometimes shutting down the OP25 using ctrl-C doesn't work. I end up having to close the terminal window and re-issue the startup.

These are just things that I've noticed since switching back to the Boatbod fork. Not meant to be complaints. Probably just do to something I'm doing wrong since I don't see anyone else mentioning these things. the biggest issue is the over-heating and I will try going back to X11 and see if it makes a difference.
Mike

1Mhz is the optimum setting for a single RTL/single channel system.
If the cpu is climbing when you are using VNC, that probably a clue that some related process is either hogging memory and causing swapping, or directly hogging cpu. Personally I just use plain old ssh command line access and a web terminal to access op25. Unfortunately the RPI series all make pretty poor desktop substitutes due to their low performance so I would suggest it's best to avoid running a full desktop environment on one.

Boatbod op25 does occasionally hang on shutdown, but usually a couple extra ctrl-c will finish it off.

 

[n5pwp]

If the cpu is climbing when you are using VNC, that probably a clue that some related process is either hogging memory and causing swapping, or directly hogging cpu. Personally I just use plain old ssh command line access and a web terminal to access op25.

That's a good point. I just assumed that whenever I had the VNC session window up the Pi had to send desktop video out and that was causing the ramp up. I just didn't take it one step farther to resolve that it could be the VNC Viewer/VNC Server causing the problem. So, I thought, that's a great idea. An old Pi serves better as a terminal OS than a Windowing/Desktop system. I brought up my trusty Putty and SSHed in and when I got to the directory where where my script file is supposed to be it wasn't anywhere to be found. Even though I could go back to the VNC session and see it in there. There are some sh files in there but not mine. Then it dawned on me that the SSH session may use a different shell than what my script was written in. I checked it and it is bash while my script file has set up for /bin/sh. I suppose I could create a bash script to do the same as my /bin/sh script. I tried changing the shell for the SSH session but it keeps coming back as being bash.

Boatbod op25 does occasionally hang on shutdown, but usually a couple extra ctrl-c will finish it off.

Well, I tried a string of ctrl-C's and no luck. It does work somethimes but a lot of times its just hung and I have to shut down the terminal and reopen.

Mike

 

[boatbod]

Well, I tried a string of ctrl-C's and no luck. It does work somethimes but a lot of times its just hung and I have to shut down the terminal and reopen.

Mike

Or open a second terminal and kill the stuck process.

 

[n5pwp]

Just to close the loop. I did some more research on the subject and read that faster sd-cards can help. It was recommended to use Sandisk 32GB Extreme cards. I checked the card I was using (Samsung EVO) and it had a read speed of 12Mb/s. The Extreme tested at 27Mb/s. That improved it but I also ordered a new case with a fan and now it is running at 47 deg C. This is sticking with Bookworm. I still get a few Task Queue 1 messages but they clear away quickly. Where as I was getting up to TQ 6 messages on the old card. So you can salvage an old RPi. I may try Boatbod's edit regarding threads for waitress and see if iy gets rid of the Task Queue messages.

Thanks for everyone's input on this.

Mike