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netdata_netdata/web/api/queries/incremental_sum
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Costa Tsaousis 080e0aee27
Faster queries () 
* faster rrdeng_load_metric_next()

* no need to check validity for number - already done at the query side

* solve discrepancy between query create and free

* inline unpack_storage_number
2022-05-24 08:20:40 +03:00
..
incremental_sum.c Faster queries () 2022-05-24 08:20:40 +03:00
incremental_sum.h Faster queries () 2022-05-24 08:20:40 +03:00
Makefile.am Makefile.am files indentation () 2019-11-11 01:30:00 +02:00
README.md Docs: Removed Google Analytics tags () 2022-02-17 10:37:46 +00:00

README.md

Incremental Sum (incremental_sum)

This modules finds the incremental sum of a period, which last value - first value.

The result may be positive (rising) or negative (falling) depending on the first and last values.

how to use

Use it in alarms like this:

 alarm: my_alarm
    on: my_chart
lookup: incremental_sum -1m unaligned of my_dimension
  warn: $this > 1000

incremental_sum does not change the units. For example, if the chart units is requests/sec, the result will be again expressed in the same units.

It can also be used in APIs and badges as &group=incremental_sum in the URL.

Examples

Examining last 1 minute successful web server responses:

References

  • none