High Memory Usage, is this normal?

skywatch

Using mysensors gateway 2.2.0 - NRF24L01+ attached directly to the pi.
If I reboot the pi then memory is about 53%, but gradually climbs over time (memory hole?)....
No scripts running as far as I know.
UPDATE - MQTT is running for the rpi internal info (that's how I know about the memory use- 88% now).
I also notice that the rpi-gpio node is shown as down, yet has recently been active. I have nothing using that yet, so maybe that is the problem (but I would have expected it to be up and running after install, no?).

jkandasa

@skywatch Can you check with top which uses more CPU?

skywatch

Java is by far the winner in using the most cpu and the most memory... hope that helps...

Tag

@skywatch

same here.. see the top output below

asks:  84 total,   2 running,  82 sleeping,   0 stopped,   0 zombie
%Cpu(s):  3.2 us,  1.1 sy,  0.0 ni, 95.7 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem:    506832 total,   484768 used,    22064 free,    23672 buffers
KiB Swap:   131068 total,        0 used,   131068 free.   191584 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                             
25421 root      20   0  289604 214600   4400 S  14.9 42.3 402:09.80 java                                                
  481 root      20   0   12568    996    792 S   1.0  0.2 310:10.60 mysgw

in my case I use an orangepi running armbian, the receiver also directly attached to the GPIO header. SInce i use mysgw as a deamon, the CPU usage is higher (therefor runs hotter), compared to an arduino with the sensor attached...

But you are right java seems a bit memory hungry...

Let me know if you need more info

jkandasa

@skywatch Still are you facing this issue after followed this http://forum.mycontroller.org/topic/175/web-page-script-stopped-responding/6 ?

jkandasa

@Tag This is my RPI CPU usage, I use RPI minimal install and WiFI MySnesors gateway(two gateways)

skywatch

I have had to reboot the pi today a few times but am now monitoring memory usage. So far it is rising steadily, but slowly. I will give it a few days and see how it goes.

Tag

@jkandasa

I unfortunately cannot get the graph you show.....
did you get it from a script or from the myagent software?

skywatch

How do I add an image to a post here?

Also, what memory is mcagent reporting? Ram? Sdcard? I have an image screenshot that you might like to see!

jkandasa

@Tag Yes, I use MCAgent to report RPI internals.

@skywatch It is CPU of the RPI.

How do I add an image to a post here?

Just save the image on your local computer and do upload with upload icon when composing message on this forum.

skywatch

@jkandasa

@skywatch It is CPU of the RPI.

That doesn't make sense, memory is separate to CPU surely?

I can only upload images less then 512kb. At that level all detail is lost, can I send directly to your email?

jkandasa

@skywatch Yes, I put 512KB limit to avoid storage full. Yes please send to jkandasa at gmail dot com

High Memory Usage, is this normal?

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