Electron CPU usage
@schlachtkreuzer6 Technically, they’re not error messages. They’re warnings. If they become serious, then they will be promoted to errors.
@MichMich Got a similar issue as reported by @schlachtkreuzer6, unfortunately I now have a black screen when starting. Logs show “WARNING! Could not load config file. Starting with default configuration. Error found: Error: Module version mismatch. Expected 50, got 54”. Any suggest on how to revert?
Update: Managed to successfully revert back but doing a " npm install electron".
Sandy2503 last edited by
i have a problem at downgrading:
pi@magicmirror:~ $ cd ~/MagicMirror pi@magicmirror:~/MagicMirror $ npm install email@example.com > firstname.lastname@example.org postinstall /home/pi/MagicMirror/node_modules/electron > node install.js - @email@example.com node_modules/@types/node firstname.lastname@example.org /home/pi/MagicMirror └── email@example.com invalid
How can i fix that ?
(first, sorry for my english. i hope you understand what i am trying to tell^^)
i have got the same problem as u all.
So i tried to fix it with using MagicMirror 2.1.0 and electron 1.4.15
Unfortunately i am not the best programer, so sometimes i don’t know if i’m doing anything right.
Well, i tried the option as shown in this thread on page 18 (https://forum.magicmirror.builders/post/28875)
That gave me some npm errors when i type “npm start”.
So i tried to use this guide: https://forum.magicmirror.builders/topic/5274/how-to-manually-install-mm-on-your-pi-for-absolute-beginners
But it gave me the same errors.
Step by step i did:
- rename the original MM-Folder to “MagicMirror_OLD”
- Downloaded this https://github.com/MichMich/MagicMirror/archive/v2.1.0.zip
- extract it and rename it to “MagicMirror”
- cd in this folder and type “npm install”
- after installing was done i typed “npm start” and got this:
pi@MagicMirror:~ $ cd ~/MagicMirror/ pi@MagicMirror:~/MagicMirror $ npm start > firstname.lastname@example.org start /home/pi/MagicMirror > electron js/electron.js npm ERR! Linux 4.9.59-v7+ npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "start" npm ERR! node v6.12.2 npm ERR! npm v3.10.10 npm ERR! code ELIFECYCLE npm ERR! email@example.com start: `electron js/electron.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the firstname.lastname@example.org start script 'electron js/electron.js'. npm ERR! Make sure you have the latest version of node.js and npm installed. npm ERR! If you do, this is most likely a problem with the magicmirror package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! electron js/electron.js npm ERR! You can get information on how to open an issue for this project with: npm ERR! npm bugs magicmirror npm ERR! Or if that isn't available, you can get their info via: npm ERR! npm owner ls magicmirror npm ERR! There is likely additional logging output above. npm ERR! Please include the following file with any support request: npm ERR! /home/pi/MagicMirror/npm-debug.log pi@MagicMirror:~/MagicMirror $
Another time i tried as shown on page 18. it was showing me, that i was using electron 1.4.15, but when i typed the “npm start” it shows me the same message as above.
i don’t know what to do would be quite nice, if u guys could invest some time to solve my problem together. thank you very much
the “npm-debug.log” is here:
0 info it worked if it ends with ok
1 verbose cli [ ‘/usr/bin/node’, ‘/usr/bin/npm’, ‘start’ ]
2 info using email@example.com
3 info using firstname.lastname@example.org
4 verbose run-script [ ‘prestart’, ‘start’, ‘poststart’ ]
5 info lifecycle email@example.com~prestart: firstname.lastname@example.org
6 silly lifecycle email@example.com~prestart: no script for prestart, continuing
7 info lifecycle firstname.lastname@example.org~start: email@example.com
8 verbose lifecycle firstname.lastname@example.org~start: unsafe-perm in lifecycle true
9 verbose lifecycle email@example.com~start: PATH: /usr/lib/node_modules/npm/bin/node-gyp-bin:/home/pi/MagicMirror/node_modules/.bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games
10 verbose lifecycle firstname.lastname@example.org~start: CWD: /home/pi/MagicMirror
11 silly lifecycle email@example.com~start: Args: [ ‘-c’, ‘electron js/electron.js’ ]
12 silly lifecycle firstname.lastname@example.org~start: Returned: code: 1 signal: null
13 info lifecycle email@example.com~start: Failed to exec start script
14 verbose stack Error: firstname.lastname@example.org start:
14 verbose stack Exit status 1
14 verbose stack at EventEmitter. (/usr/lib/node_modules/npm/lib/utils/lifecycle.js:255:16)
14 verbose stack at emitTwo (events.js:106:13)
14 verbose stack at EventEmitter.emit (events.js:191:7)
14 verbose stack at ChildProcess. (/usr/lib/node_modules/npm/lib/utils/spawn.js:40:14)
14 verbose stack at emitTwo (events.js:106:13)
14 verbose stack at ChildProcess.emit (events.js:191:7)
14 verbose stack at maybeClose (internal/child_process.js:920:16)
14 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:230:5)
15 verbose pkgid email@example.com
16 verbose cwd /home/pi/MagicMirror
17 error Linux 4.9.59-v7+
18 error argv “/usr/bin/node” “/usr/bin/npm” “start”
19 error node v6.12.2
20 error npm v3.10.10
21 error code ELIFECYCLE
22 error firstname.lastname@example.org start:
22 error Exit status 1
23 error Failed at the email@example.com start script ‘electron js/electron.js’.
23 error Make sure you have the latest version of node.js and npm installed.
23 error If you do, this is most likely a problem with the magicmirror package,
23 error not with npm itself.
23 error Tell the author that this fails on your system:
23 error electron js/electron.js
23 error You can get information on how to open an issue for this project with:
23 error npm bugs magicmirror
23 error Or if that isn’t available, you can get their info via:
23 error npm owner ls magicmirror
23 error There is likely additional logging output above.
24 verbose exit [ 1, true ]
Sandy2503 last edited by
@cruunnerr - I `ve done it !
without previous Unistall
i have downgraded with:
sudo npm install -g firstname.lastname@example.org
i had MM 2.1.2 installed, so i needed to use the 2.1.0 way…
but i actually got it running with “DISPLAY=:0 npm start”
then i just copied the installed modules folders to the new directory and copied my “old” config.js but that didn’t work.
i actually install the 3rd party modules manual. hopefully my old config.js will work then.
But thank you anyway
i got MM2.1.0 running with electron 1.4.15
have had a few problems, but now all works great.
Bad issue with electron. When i downgrade to 1.4.15 the default calender module does not work
ok…calendar works fine
Cause i didn’t want to run 2.1.0 and also got many errors every time i looked in the logs, i decided to do a fresh install and try again.
So i just installed a fresh Raspbian stretch lite and followed this guide: https://github.com/MichMich/MagicMirror/wiki/Jessie-Lite-Installation-Guide
after the first start i got 80-85% cpu usage just playing the default modules.
so i went into my MagicMirror folder and just typed “npm install email@example.com”.
It said that the version seems to be invalid, but after a reboot i tooled a look in the
and saw a 1.4.15 shown.
so in my experience its just the electron version needed to downgrade. Neither the OS nor the MagicMirror Version needs to be downgraded.
Loaded up a video: https://youtu.be/ak_mEMuLpYc
shows “nmon-stats” while adding Traffic- and News-Module via Remote Control
Still shows peaks when animation comes, but its fluety anyway
WeatherGeek last edited by
I have been having the issue, thanks so much for all the detailed information! I am going to do a fresh install with Jessy and downgrade Electron and MM2.
First off, apologies for the necro! But I had to reinstall MM this weekend and came across this same issue. After a fair bit of time reinstalling/googling, I managed to resolve it by adding the following to /etc/environment
So thought I’d post it here in case anyone else experiences this.
I’ve had the default install running for a while since adding the fix and my load avg has dropped from 6+ to “0.00, 0.02, 0.02” and electron seems to peak at around 7% every ~30s for about 2s. The rest of the time it isn’t even visible in top’s list.
credit to reddit: https://www.reddit.com/r/kde/comments/5x9t7j/electron_app_high_cpu_usage/
Edit: After adding my usual modules, electron’s CPU usage has gone up to a fairly constant ~9% across 3 processes.
top - 00:04:33 up 25 min, 3 users, load average: 0.06, 0.13, 0.13 Tasks: 156 total, 2 running, 154 sleeping, 0 stopped, 0 zombie %Cpu(s): 2.0 us, 0.4 sy, 0.0 ni, 97.6 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 947732 total, 486072 used, 461660 free, 26476 buffers KiB Swap: 102396 total, 0 used, 102396 free. 240288 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1387 pi 20 0 300260 98384 55840 S 4.9 10.4 0:45.48 electron 1394 pi 20 0 286500 68700 49420 S 2.0 7.2 0:23.08 electron 1358 pi 20 0 436408 78528 57656 S 1.0 8.3 0:19.25 electron
Edit2: Left it running over night, and it’s stable:
top - 07:51:22 up 8:12, 3 users, load average: 0.24, 0.23, 0.17 Tasks: 153 total, 1 running, 152 sleeping, 0 stopped, 0 zombie %Cpu(s): 2.1 us, 0.3 sy, 0.0 ni, 97.5 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 947732 total, 543280 used, 404452 free, 34664 buffers KiB Swap: 102396 total, 0 used, 102396 free. 271040 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1798 pi 20 0 301180 99652 56580 S 5.3 10.5 22:54.84 electron 1805 pi 20 0 321060 79368 50868 S 2.6 8.4 11:36.49 electron 1770 pi 20 0 480972 82744 58648 S 1.0 8.7 7:20.91 electron