How to subtract two queries in a pie chart

Grafana Zabbix
1

Hello,

I am trying to understand if and how can I subtract two queries with metric data from a zabbix datasource, in a pie chart.

From what I have saw there is a ‘functions’ field on each query mode, and there are two functions available called delta and rate but I dont know if I can do this with that, or if its possible(http://prntscr.com/ji7ywx).

Or if there is a way to represent percentages and not the current value(http://prntscr.com/ji7yjy).

Anyone?

Thanks!

2

Not 100% sure if this is what you’re trying to do, but maybe this helps:

3

Hello, @bjgocraft. Not really wanting/trying to “cut you out”, but please, refrain from replying on questions/posts that’s so old. It really messes up with the relevance of the questions since in 6 years a lot changed in all software involved.

I’ll close this topic for now.