Modify k6 load tests (#5181)

* Update the scenarios for k6 tests

* Update the scenarios for k6 tests to run for 3m

* Update the scenarios for k6 tests to run for 5m

* Revert "Re-add the memory leak for testing"

This reverts commit 38f40e8.

* Increase the rate x1.5

* Revert "Revert "Re-add the memory leak for testing""

This reverts commit a239799.

* Increase the rate x2

* Decrease the rate back to 30

* Revert "Revert "Revert "Re-add the memory leak for testing"""

This reverts commit 874fa66.

* Decrease the rate to 10

* Lower the duration to 4 minutes

* Lower the rate to 3

* Lower the VU counts

* Extract the defaultUiState to an object

* Run longer in staging

.github/workflows/k6.yml

@@ -55,6 +55,7 @@ jobs:
           just k6 ${{ inputs.namespace }} ${{ inputs.scenario }} \
             ${{ inputs.report && '-o cloud' || ''}} \
             -e signing_secret="$K6_SIGNING_SECRET" \
+            -e scenario_duration="6m" \
             -e service_url=${{ inputs.service_url }} \
             -e text_summary=/tmp/k6-summary.txt
 

packages/js/k6/src/frontend/scenarios.ts

@@ -106,14 +106,17 @@ const createScenario = (
   funcName: Action
 ): Scenario => {
   return {
-    executor: "per-vu-iterations",
+    executor: "constant-arrival-rate",
     env,
     exec: funcName,
     // k6 CLI flags do not allow override scenario options, so we need to add our own
     // Ideally we would use default
     // https://community.grafana.com/t/overriding-vus-individual-scenario/98923
-    vus: parseFloat(__ENV.scenario_vus) || 5,
-    iterations: parseFloat(__ENV.scenario_iterations) || 40,
+    timeUnit: __ENV.scenario_time_utin || "1m",
+    rate: parseInt(__ENV.scenario_rate) || 3,
+    duration: __ENV.scenario_duration || "4m",
+    preAllocatedVUs: 10,
+    maxVUs: 20,
   }
 }