this seems like a pretty easy thing to do. Yet I cannot wrap my head around it.
I make some calculations depending on the average CPU Utilization for the last 15s and get a value based of that calculation. No I want a graph in Grafana which shows the cumulative result. E.g.
| Time passed | Current result | Cumulative result |
|---|---|---|
| 15s | 5 | 5 |
| 30s | 7 | 12 |
| 45s | 6 | 18 |
At the moment my query looks something like:
sum (((1 - (avg by (cpu, instance) (rate(node_cpu_seconds_total{mode="idle"}[15s])))) * 2 + 4
This results in a graph plotting the current results. But I want a query plotting the cumulative results. When I try to wrap the whole query with a sum_over_time, I get the following exception: "expected type matrix in call to function "sum_over_time", got vector"
Thank you for your help