Read the statement by Michael Teeuw here.
All of a sudden SSH is really lagging/slow.
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@Mar If you get in to SSH, check if you have a HUGE file called “core” in your MagicMirror directory. If you do, delete it. I have had the same issue, EVERYTHING get’s slow and eventually you cant do anything. I noticed the file on my second install (again) and deleted it before it died. Now I’m trying to find how this file get’s created. It should not be there.
If you cant find it, make it and share it!
Modules: MMM-homeassistant-sensors, MMM-Modulebar, MMM-Profilepicture, MMM-Videoplayer -
@Snille does a module create this file? I don’t have a file called core in my mm directory
Please create a github issue if you need help, so I can keep track
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Thanks for the tips everyone.
@yawns I’m connected via wifi and in the same room as the router, nothing has changed here. I’ve attempted to add the UseDNS=no but it didnt seem to change the major lag im experiencing. i.e i type and it takes a few seconds for it to show up on the command line. But when I tried ‘UseDNS no’ (as this seemed to be the syntax in the file) it seemed to be a little speedier upon the next reboot! Not near as fast as it was a few weeks back but now i can get in and navigate around etc. Thanks!I wonder if there is anything else that could be slowing it down, how does the UsDNS command speed things up like it did?
@Snille i’ve done an ls -alh in a few of the directories and have no large file name core. Would there be any other temp/log type of files that could be causing a slowdown?
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@strawberry-3.141 I don’t know yet. I just rebooted my mirror now and got it back again. I’m trying to figuring it out.
Here is my MagicMirror dir after this reboot…
The file is there again… :/drwxr-xr-x 16 pi pi 4096 Mar 22 11:06 . drwxr-xr-x 21 pi pi 4096 Mar 22 11:08 .. -rw-r--r-- 1 pi pi 11172 Mar 21 13:37 CHANGELOG.md drwxr-xr-x 2 pi pi 4096 Mar 21 13:52 config -rw------- 1 pi pi 574697472 Mar 22 11:07 core drwxr-xr-x 2 pi pi 4096 Mar 21 13:37 css -rw-r--r-- 1 pi pi 266 Mar 21 13:37 docker-entrypoint.sh -rw-r--r-- 1 pi pi 378 Mar 21 13:37 Dockerfile -rw-r--r-- 1 pi pi 964 Mar 21 13:37 .dockerignore -rw-r--r-- 1 pi pi 132 Mar 21 13:37 .eslintignore -rw-r--r-- 1 pi pi 319 Mar 21 13:37 .eslintrc.json drwxr-xr-x 20 pi pi 4096 Mar 21 13:37 fonts drwxr-xr-x 8 pi pi 4096 Mar 22 11:09 .git drwxr-xr-x 2 pi pi 4096 Mar 21 13:37 .github -rw-r--r-- 1 pi pi 915 Mar 21 13:37 .gitignore -rw-r--r-- 1 pi pi 2173 Mar 21 13:37 Gruntfile.js -rw-r--r-- 1 pi pi 2337 Mar 21 13:37 index.html drwxr-xr-x 3 pi pi 4096 Mar 21 13:37 installers drwxr-xr-x 2 pi pi 4096 Mar 21 13:37 js -rw-r--r-- 1 pi pi 271 Mar 21 13:37 jsconfig.json -rw-r--r-- 1 pi pi 1118 Mar 21 13:37 LICENSE.md drwxr-xr-x 27 pi pi 4096 Mar 22 08:40 modules drwxr-xr-x 561 pi pi 20480 Mar 22 10:55 node_modules -rw-r--r-- 1 pi pi 1789 Mar 21 13:37 package.json -rw-r--r-- 1 pi pi 11431 Mar 21 13:37 README.md -rw-r--r-- 1 pi pi 141 Mar 21 13:37 run-start.sh drwxr-xr-x 2 pi pi 4096 Mar 21 13:37 serveronly -rw-r--r-- 1 pi pi 478 Mar 21 13:37 .snyk drwxr-xr-x 2 pi pi 4096 Mar 21 13:37 splashscreen -rw-r--r-- 1 pi pi 126 Mar 21 13:37 .stylelintrc drwxr-xr-x 6 pi pi 4096 Mar 21 13:37 tests drwxr-xr-x 2 pi pi 4096 Mar 21 13:37 translations -rw-r--r-- 1 pi pi 229 Mar 21 13:37 .travis.yml drwxr-xr-x 3 pi pi 4096 Mar 21 23:24 vendorIf you cant find it, make it and share it!
Modules: MMM-homeassistant-sensors, MMM-Modulebar, MMM-Profilepicture, MMM-Videoplayer -
@Snille disable all modules delete this file and put only one module step by step to check what is creating this file. Can you open that file in an editor to get more details?
@Mar which modules you’re using? how about the cpu usage?
Please create a github issue if you need help, so I can keep track
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@strawberry-3.141 That’s what I’m doing right now… :)
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@Mar
Thanks for the feedback. I will change my post and remove the =, so others won’t run into the same mistake. -
@strawberry-3.141 My cpu usage (using top) after the pi has booted up stays around 3-5% (using the top command raises this a bit). And memory usage doesnt seem out of control either.
top - 10:36:12 up 43 min, 3 users, load average: 0.14, 0.12, 0.11 Tasks: 107 total, 1 running, 100 sleeping, 6 stopped, 0 zombie %Cpu(s): 4.7 us, 1.0 sy, 0.0 ni, 93.9 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st KiB Mem: 445084 total, 340880 used, 104204 free, 26108 buffers KiB Swap: 102396 total, 0 used, 102396 free. 159376 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 611 pi 20 0 205560 77592 42308 S 3.3 17.4 1:35.69 midori 3581 pi 20 0 5232 2596 2160 R 1.6 0.6 0:00.38 top 60 root 20 0 0 0 0 S 0.3 0.0 0:02.04 kworker/0:2 594 root 19 -1 154840 47040 21040 S 0.3 10.6 0:16.78 Xorg 3241 pi 20 0 11940 3440 2768 S 0.3 0.8 0:00.89 sshd 1 root 20 0 5308 3776 2736 S 0.0 0.8 0:07.32 systemd 2 root 20 0 0 0 0 S 0.0 0.0 0:00.01 kthreadd 3 root 20 0 0 0 0 S 0.0 0.0 0:01.17 ksoftirqd/0Im using the following modules.
- profileswitcher, buttons, clock, calendar, compliments, current weather, weather forecast, wunderlist, newsfeed, calendar monthly, tube status, and system stats.
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@strawberry-3-141 Hmm… It does not seam to be any module doing it… I’m thinking it’s a “core-dump”, I noticed when restarting that it took a long time before it actually restarted. I’m guessing something did not close down properly, then the memory (or something) is dumped down to a file… Now it’s not happening any longer… Reboots normally. Only thing is that I lost my pm2 autostart of the mirror for some reason (had to do a
pm2 startupand run the “setup” commandsudo env PATH=$PATH:/usr/bin /usr/lib/node_modules/pm2/bin/pm2 startup systemd -u pi --hp /home/piagain… And now it starts normally again… No core file after reboots, all modules back again… Darn! :) -
@Mar does the ssh speedup when you shut down the mirror?
