Clickpath step response time SLO

[PaulE]

I'm trying to create an SLO based off the load times for a single step in a clickpath synthetic. Its basically % of requests that load in less than a defined time. I cannot figure out how to create calculated metrics successful request count or total request count for the SLO calculation as I would for a service based response time SLO.  Has anyone had success with a similar requirement? 

[Eric_Yu]

Hi Paul,

You might wanna use the partition transformation in your metric selector.

https://docs.dynatrace.com/docs/shortlink/api-metrics-v2-selector#partition

Here's a quick example:

Say you have this data but only want to count the # of requests above a certain load time (let's say 3s):

You'd have to use partition to split that data into a new dimension (let's call it "Category):

builtin:synthetic.browser.event.actionDuration.load
:splitBy("dt.entity.synthetic_test_step"):auto
:partition("Category",
          value("good",lt(3000)),
          value("bad",gt(3000)))
:filter(and(or(in("dt.entity.synthetic_test_step",entitySelector("type(synthetic_test_step),entityName.equals(~"click on ~~~"Finish~~~"~")")))))
:sort(value(auto,descending))
:limit(20)

And filter only the dimension you want:

:filter(eq("Category","bad"))

If you want to create an SLO based off of that just take the count() of those values and divide it between the total load actions.

Hope it helps!

[pt_A360]

The results of the of the partition into good and bad results works, but executing a count on that data and returning a single value of 3 if we use your example returns a single value that is the sum of the action duration load times from the 3 events. I could certainly be missing something, but I am just not able to return back a simple count of X number above X seconds. 

[Eric_Yu]

Try adding a fold transformation on the query or the explorer: