I use cadvisor+influxdb to monitor the performance of docker container, the data collected by cadvisor was stored in influxdb, but I don't know the meaning of the data,can anyone explain the meaning of data or tell me how cadvisor calculate the cpu usage? The data below shows the data stored in influxdb. Thanks in advance.
cpu_usage_per_cpu
time container_name instance machine value
2017-06-25T... "/" "1" "40e90a2a7e09" 4882667197496
The column value is number and I don't know the number's meaning.