Electron CPU usage

Mykle1

The capacity is certainly large enough. I don’t know if the U1 designation has anything to do with it. There is a recommended SD card list somewhere. Your free space is more than adequate, assuming you expanded the swap file during installation of the OS, or something like that. If stylelint was a warning, and not an error, then that shouldn’t affect performance. I know, all of this doesn’t help you, so . . .

A few more thoughts. Are you running Raspbian Jessie? Lite? Are node and npm up to date?

I know it’s a hassle, but I always suggest a clean, MANUAL installation as opposed to troubleshooting, which could take hours, or days. Some people have had troubles with the automatic installer. That’s just my opinion, for what it’s worth.

roramirez

@wtidwell Can you share the configuration when did you get a big CPU usage?

What version are you using?

wtidwell

@Mykle1
Looks like I’m running Jessie and my SD card is on the recommended list so I’ll try a manual reinstall.

Thanks for all your help!

wtidwell

@roramirez
@Mykle1

I just did a full clean install of everything including Raspian and I had to install stretch instead of Jessie but everything else installed smoothly but I’m still having this lag.

Mykle1

@wtidwell
2 clean installations, 1 with Jessie and 1 with Stretch and the same issue appears? Unless some step is missing with the OS or MM then I’d hate to assume you have a hardware issue. I really need to get a spare Pi3 so that I can troubleshoot more effectively. I’m only on a dev machine at the moment.

Perhaps @roramirez has some input here

Snille

Hmm… I always thought this was a normal behavior? Electron always runs pretty high on my RPI Mirror. This is my “task-list” using nmon on the RPi (via SSH) with basically nothing on the Mirror Screen but as you can see Electron is pretty active. :)

I do have quite a lot of active plugins of course…

wtidwell

@Mykle1
Yeah I’d hate that too. =/ gonna try another clean install but this time of Raspian lite. I guess I can try a new SD card as well.

@Snille
That’s what mine looks like now with only default modules. And it spikes all the time.

Mykle1

@wtidwell & @Snille

For what it’s worth:

Here are my screenshots from my Pi3 mirror, via VNC, as of this morning, August 21, 2017
at 8:26am New York time. You can clearly see that Magic Mirror is running. It’s minimized
in the top Menu Bar so I could run Task Manager for this test. I marked the significant
details with red stars. This is on top of a standard Raspbian Jessie installation that was
done in January, 2017 and Magic Mirror version 2.1.0. It has been running this way for
8 months now, without a hitch. These screenshots were done with all of the below modules
running. I also included a screenshot of my system stats to show the temperature of my Pi’s
CPU and my system load, as they both may relate to performance and throttling issues.

Modules running during test and screenshots.

motiondetector
compliments
MMM-Fortune
MMM-EasyPix - 2 instances
MMM-EARTH
clock
calendar
MMM-Events
MMM-SystemStats
MMM-NetworkScanner
MMM-WunderGround - 2 instances
MMM-doomsDay
camera
MMM-Lottery
voicecontrol
MMM-EyeCandy
newsfeed

Snille

@Mykle1 Can you do a screenshot from a terminal running nmon?
If you are ok with that… Here is how to do it.

Open a terminal (or log in via SSH).
Install nmon (sudo apt-get install nmon).
Open nmon by just typing “nmon”. :)
Press “t”, “l” and “m” to get “task list”, “longer term CPU averages” and “Memory & Swap stats”.
Press + to increase the update rate.
Let nmon fill the “CPU” meter and take a screenshot. :)
Press “q” to quit nmon.
Good thing about nmon is that you can use it from ssh (via putty). :)

Thank you!

roramirez

@Mykle1 said in Electron CPU usage:

Perhaps @roramirez has some input here

What version of electron did you is installed in the system?