I’m using the great system info widget [1] in my UI; - but would like to know what keeps the system busy if there is high cpu usage.
Until I read the thread about the echarts possibilities [2] in OH I was unaware that the integrated chart engine is that powerful. This inspired me to create my own widget to enrich the original system info widget:
Widget
uid: cpu_top5
tags: []
props:
parameterGroups: []
timestamp: Sep 23, 2023, 1:35:45 PM
component: f7-card
config: {}
slots:
content:
- component: oh-chart
slots:
series:
- component: oh-data-series
config:
type: pie
roseType: area
labelLine:
length: 5
length2: 10
radius: ['0%', '80%']
data:
- value: =JSON.parse(items['openhab_process_top_5'].state)[0].CPU
name: >
=JSON.parse(items['openhab_process_top_5'].state)[0].CMD.split('/').slice(-1).pop() + "\n" +
JSON.parse(items['openhab_process_top_5'].state)[0].ARG.replaceAll(" ", "\n")
- value: =JSON.parse(items['openhab_process_top_5'].state)[1].CPU
name: >
=JSON.parse(items['openhab_process_top_5'].state)[1].CMD.split('/').slice(-1).pop() + "\n" +
JSON.parse(items['openhab_process_top_5'].state)[1].ARG.replaceAll(" ", "\n")
- value: =JSON.parse(items['openhab_process_top_5'].state)[2].CPU
name: >
=JSON.parse(items['openhab_process_top_5'].state)[2].CMD.split('/').slice(-1).pop() + "\n" +
JSON.parse(items['openhab_process_top_5'].state)[2].ARG.replaceAll(" ", "\n")
- value: =JSON.parse(items['openhab_process_top_5'].state)[3].CPU
name: >
=JSON.parse(items['openhab_process_top_5'].state)[3].CMD.split('/').slice(-1).pop() + "\n" +
JSON.parse(items['openhab_process_top_5'].state)[3].ARG.replaceAll(" ", "\n")
- value: =JSON.parse(items['openhab_process_top_5'].state)[4].CPU
name: >
=JSON.parse(items['openhab_process_top_5'].state)[4].CMD.split('/').slice(-1).pop() + "\n" +
JSON.parse(items['openhab_process_top_5'].state)[4].ARG.replaceAll(" ", "\n")
tooltip:
- component: oh-chart-tooltip
config:
show: true
The information for the chart I collect using the exec binding (only works on linux):
ps -ewo pid,%cpu,user,cmd --sort=-%cpu --no-headers | awk '$4 !~ /^(awk|jq|ps|sshd)/ {print;}' | head -n 5 | awk '{print $1","$2","$3","$4","$5,$6,$7,$8,$9,$10}' | jq -R 'split(",") | { "PID": .[0], "CPU": .[1], "USER": .[2], "CMD": .[3], "ARG": .[4] }' | jq -s '.'
[1]: System Info Widget
[2]: Main UI echarts POC