I use netdata to collect metrics and export them to timescaledb with data provider. After getting metrics from postgresql, I find netdata is a really inspiring and excellect tool.
With as-collected metrics I wanna output some meaningful metrics. For example, I wanna calclute cup utilization with metrics such as system.cpu.idle,system.cpu.user,system.cpu.iowai,system.cpu.system.
I know that I can get metrics as average and cpu utilization ratio is stored in the database directly. But here I wanna do it myself for flexible control and understanding of the system.
Q1:
So, is there any document that describe the meaning/unit of the metrics?
Q2:
If I wanna to lean how to calclute metrics in average format, is there any document that help me to find the calcluting way from source code?
Hi @oleotiger. First of all thanks for your kind words
So, is there any document that describe the meaning/unit of the metrics?
No, there is no one document that describes all the metrics exposed by Netdata Agent. Agents itself is a consumer, it has a lot of collectors (internal and external), they produce charts (metrics).
the meaning/unit of the metrics?
Usually a unit is self-explanatory - kilobits/s, seconds, percenage, processes, etc. Metrics are grouped into charts (for exactly that purpose - make them meangful, provide its context).
Netdata dashboard contains a lot of additional info - charts titles, charts help information (with links) - you saw it.
If I wanna to lean how to calclute metrics in average format, is there any document that help me to find the calcluting way from source code?
I am not clear. Can you give an example what you want?
If there is no document, I would prefer to read source code as a way to understand the meaning of metrics.
And in the meanwhile from source code I wanna understand how netdata use metrics as collected to generate average format metrics. Is there any advice to make source code reading easier?
