RAM usage increases until the application stops

[Schrambang]

Hi,

I am also enthusiastic about the idea and overwhelmed by the scope of the program. I use the current, last version from 07.07.2024.
My facts:

• SW: 1.1_health
• Commit: 501c17d
• Board: HELTEC-OLED-128x64-WiFiKitV3
• I adding boards to Arduino as requested.
• I installed ESP32 from board manager.
• I installed the needed libraries
  * PubSubClient in Version 2.8 by Nick O'Leary
  * U8g2 in Version 2.34.22 by oliver
  * Time in Version 1.6.1 by Paul Stoffregen
  * RTClib in Version 2.1.1 by Adafruit tried wit this version and with the update 2.1.4 same result
  * Adafruit_BusIO in Version 1.14.4 by Adafruit tried wit this version and with the update 1.16.1 same result
  * Preferences by Volodymyr Shymanskyy Version 2.1.0

It seems that the RAM usage increase more during the time data will receive from the inverter (see attached screenshot at 6.00 am).

Unfortunately, I have not yet been able to find the cause of this. Has anyone been able to observe the same behavior and may have already solved the problem.

Greetings
Harald

[marxram]

Hi Herald,
actually I had also some of theese issues, which I saw as the graph display somehow just started over.

I then added the HEap Sensor to be able to investigate the issue a little better.
Also I was thinking about automatically doing a reboot if free Heap was too little.

--> Only reason I did't do that is because of the Graph display. It would forget all the vealues.
=> One ide to solve that was to use the flash storage as a ring buffer to store the last 24/48 h of data.

My guessing about the heap consumption is the WebServer.
Also I have seen that the WiFi AP often is staying visible, even if it actually should shut down. This might also be one cause...

As I was just looking at my heap consumption, it looks similar tp yours.

[Schrambang]

--> Only reason I did't do that is because of the Graph display. It would forget all the values.

To me it looks like the data is lost anyway. I could also observe the behavior in the binary, but had no explanation at first until I saw the heap. It was a good idea of ​​you to provide this information.