Electron CPU usage

[bhepler]

@schlachtkreuzer6 Technically, they’re not error messages. They’re warnings. If they become serious, then they will be promoted to errors.

[Tourpe]

@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]

i have a problem at downgrading:

pi@magicmirror:~ $ cd ~/MagicMirror
pi@magicmirror:~/MagicMirror $  npm install electron@1.4.15

> electron@1.4.15 postinstall /home/pi/MagicMirror/node_modules/electron
> node install.js

- @types/node@7.0.43 node_modules/@types/node
magicmirror@2.1.3 /home/pi/MagicMirror
└── electron@1.4.15  invalid

How can i fix that ?

Sandy2503

[cruunnerr]

Hey guys,

(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:

1. rename the original MM-Folder to “MagicMirror_OLD”
2. Downloaded this https://github.com/MichMich/MagicMirror/archive/v2.1.0.zip
3. extract it and rename it to “MagicMirror”
4. cd in this folder and type “npm install”
5. after installing was done i typed “npm start” and got this:

pi@MagicMirror:~ $ cd ~/MagicMirror/
pi@MagicMirror:~/MagicMirror $ npm start

> magicmirror@2.1.0 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! magicmirror@2.1.0 start: `electron js/electron.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the magicmirror@2.1.0 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 :)

edit:

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 npm@3.10.10
3 info using node@v6.12.2
4 verbose run-script [ ‘prestart’, ‘start’, ‘poststart’ ]
5 info lifecycle magicmirror@2.1.0~prestart: magicmirror@2.1.0
6 silly lifecycle magicmirror@2.1.0~prestart: no script for prestart, continuing
7 info lifecycle magicmirror@2.1.0~start: magicmirror@2.1.0
8 verbose lifecycle magicmirror@2.1.0~start: unsafe-perm in lifecycle true
9 verbose lifecycle magicmirror@2.1.0~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 magicmirror@2.1.0~start: CWD: /home/pi/MagicMirror
11 silly lifecycle magicmirror@2.1.0~start: Args: [ ‘-c’, ‘electron js/electron.js’ ]
12 silly lifecycle magicmirror@2.1.0~start: Returned: code: 1 signal: null
13 info lifecycle magicmirror@2.1.0~start: Failed to exec start script
14 verbose stack Error: magicmirror@2.1.0 start: electron js/electron.js
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 magicmirror@2.1.0
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 magicmirror@2.1.0 start: electron js/electron.js
22 error Exit status 1
23 error Failed at the magicmirror@2.1.0 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]

@cruunnerr - I `ve done it !
without previous Unistall

i have downgraded with:

sudo npm install -g electron@1.4.15

Sandy2503

[cruunnerr]

Well,

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

edit:

so,

i got MM2.1.0 running with electron 1.4.15

have had a few problems, but now all works great.

[knubbl]

Bad issue with electron. When i downgrade to 1.4.15 the default calender module does not work

ok…calendar works fine

[cruunnerr]

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 electron@1.4.15”.
It said that the version seems to be invalid, but after a reboot i tooled a look in the
“/home/pi/MagicMirror/node_modules/electron/dist/version”
and saw a 1.4.15 shown.

thats all.

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]

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.

[mattn]

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

ELECTRON_FORCE_WINDOW_MENU_BAR=1

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