RPi high CPU load

[henklor]

Yesterday when sailing, opencpn became really sluggish to a point where it locked up when activating a route.
Restarted the Pi and checked the CPU load....
What I noticed is an application name "NODE" was running at 104% CPU usage...
When I killed it, my data feed in OCPN (from Signal K) disappeared. A few seconds later the data re-appeared and when checking the list with applications, the application "node" had returned as well. (under a different PID)
Is this the Signal K application?
BTW, running a RPI 3B+

[Andreas29]

Hi,

node or node-red is the Server for Signal k data applications on a Raspberry.

Regards

Andreas

[henklor]

Thanks Andreas.
Is it normal that the CPU load is so hight for Node red?

[Andreas29]

Hi,

sorry, I don´t use node-red on my rasperry, so I can´t say.

First steps were to look for a misconfigured or high loaded data connection.

Regards

Andreas

[Reefmagnet]

I get between 9 and 13% cpu load for the "node" process on my headless Pi 3 with two serial NMEA 0183 inputs, if that helps.

[henklor]

I have 4 connection, but what I will do is start removing some of the feeds and see what happens...