High CPU usage when using serial adapter

[j54n1n]

Hello @jkandasa,

As mentioned in the forum post https://forum.mycontroller.org/post/2990 I file here the bug about the high CPU usage when using 2mqtt as serial adapter.

I get something like this with htop:

My environment was on a Raspberry Pi with latest Raspberry Pi OS based on Debian Buster and using Mosquitto 1.5.7 from apt-get.

The config file was set like this, where /dev/serial0 is a symlink to the actual PL011 UART /dev/ttyAMA0 connected to the MySensors serial gateway node:

logger:
  mode: development
  encoding: console
  level: info

adapters:
  - name: adapter1
    enabled: true
    reconnect_delay: 20s
    provider: mysensors_v2
    source:
      type: serial
      port: /dev/serial0
      baud_rate: 115200
      transmit_pre_delay: 10ms
    mqtt:
      broker: tcp://127.0.0.1:1883
      insecure_skip_verify: false
      username:
      password:
      subscribe: mysensors-in/#
      publish: mysensors-out
      qos: 0
      transmit_pre_delay: 0s
      reconnect_delay: 5s

  - name: adapter2
    enabled: false
    reconnect_delay: 20s
    provider: mysensors_v2
    source:
      type: ethernet
      server: tcp://192.168.10.21:5003
      transmit_pre_delay: 10ms
    mqtt:
      broker: tcp://192.168.10.21:1883
      insecure_skip_verify: false
      username:
      password:
      subscribe: in_nrf24/#
      publish: out_nrf24
      qos: 0
      transmit_pre_delay: 0s
      reconnect_delay: 5s

  - name: adapter3
    enabled: false
    reconnect_delay: 20s
    provider: raw
    source:
      type: serial
      port: /dev/ttyUSB0
      baud_rate: 115200
      transmit_pre_delay: 10ms
      message_splitter: 10
    mqtt:
      broker: tcp://192.168.10.21:1883
      insecure_skip_verify: false
      username:
      password:
      subscribe: in/my_topic
      publish: out/my_topic
      qos: 0
      transmit_pre_delay: 0s
      reconnect_delay: 5s

Thanks in advance.

[jkandasa]

@j54n1n I have fixed the issue, can you please verify it in the master build?

[j54n1n]

Yes with the commit b0f46c1 it seems to be fixed. I get now low CPU usage.

Thanks again.