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Add more varied load test profile, refactor instructions to use k6 Docker image #6080

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87fd421
Add more varied load test profile, refactor instructions to use k6 Do…
apata Feb 17, 2026
a747cf1
Increase rate of requests, refactor
apata Feb 18, 2026
c8f9e7a
Show when external query API request is rate limited
apata Feb 18, 2026
320edb9
Update script and readme, allow json summary, sensitive values from c…
apata Mar 4, 2026
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4 changes: 4 additions & 0 deletions test/load/.gitignore
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*
!.gitignore
!script.js
!README.md
128 changes: 124 additions & 4 deletions test/load/README.md
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### Load testing
# Load testing

This is a simple load test script set up with k6s. If you have a server running locally, you can run the load test with:
This folder contains a [`k6`](https://grafana.com/docs/k6) load testing script.

```bash
$ k6 run test/load/script.js
## Running the load test

Open the script, set input constants (environment under test, site domains), then run it:

```sh
$ docker run --name k6-test -i --rm grafana/k6 run -e AUTH_COOKIE="_plausible_staging=..." -e STATS_API_TOKEN="..." - < ./script.js
```

To get a machine readable JSON summary, run it using the command:

```sh
$ docker run --name k6-test -i grafana/k6 run -e AUTH_COOKIE="_plausible_staging=..." -e STATS_API_TOKEN="..." -e JSON_SUMMARY=true - < ./script.js; docker cp k6-test:/tmp/summary.json ./summary.json; docker rm k6-test
```

## Changing the load profile

To reconfigure the load profile, edit the exported `options` constant.

## Example output

The output looks like this:

```
█ THRESHOLDS

http_req_duration{endpoint: "/api/event", domain: "dummy.site/heavy"}
✗ 'p(95)<1500' p(95)=7.38s

http_req_duration{endpoint: "/api/event", domain: "dummy.site/light"}
✗ 'p(95)<1500' p(95)=7.56s

http_req_duration{endpoint: "/api/health"}
✓ 'p(95)<300' p(95)=0s

http_req_duration{endpoint: "/api/stats/:domain/pages", domain: "dummy.site/heavy"}
✗ 'p(95)<3000' p(95)=5.53s

http_req_duration{endpoint: "/api/stats/:domain/pages", domain: "dummy.site/light"}
✗ 'p(95)<1500' p(95)=1.61s

http_req_duration{endpoint: "/api/system/health/ready"}
✓ 'p(95)<500' p(95)=226.96ms

http_req_duration{endpoint: "/api/v2/query", domain: "dummy.site/heavy"}
✗ 'p(95)<5000' p(95)=7.2s

http_req_duration{endpoint: "/api/v2/query", domain: "dummy.site/light"}
✓ 'p(95)<2500' p(95)=1.58s

http_req_failed{endpoint: "/api/event", domain: "dummy.site/heavy"}
✗ 'rate<0.01' rate=21.95%

http_req_failed{endpoint: "/api/event", domain: "dummy.site/light"}
✗ 'rate<0.01' rate=19.60%

http_req_failed{endpoint: "/api/health"}
✗ 'rate<0.01' rate=100.00%

http_req_failed{endpoint: "/api/stats/:domain/pages", domain: "dummy.site/heavy"}
✗ 'rate<0.01' rate=14.28%

http_req_failed{endpoint: "/api/stats/:domain/pages", domain: "dummy.site/light"}
✗ 'rate<0.01' rate=16.66%

http_req_failed{endpoint: "/api/system/health/ready"}
✓ 'rate<0.01' rate=0.00%

http_req_failed{endpoint: "/api/v2/query", domain: "dummy.site/heavy"}
✗ 'rate<0.01' rate=33.33%

http_req_failed{endpoint: "/api/v2/query", domain: "dummy.site/light"}
✓ 'rate<0.01' rate=0.00%


█ TOTAL RESULTS

checks_total.......: 1132 36.498981/s
checks_succeeded...: 86.92% 984 out of 1132
checks_failed......: 13.07% 148 out of 1132

✗ request is successful
↳ 81% — ✓ 13 / ✗ 3
✗ is accepted
↳ 78% — ✓ 432 / ✗ 120
✗ is buffered
↳ 96% — ✓ 534 / ✗ 18
✗ request is successful (200)
↳ 83% — ✓ 5 / ✗ 1
✗ request is rate limited (429)
↳ 0% — ✓ 0 / ✗ 6

HTTP
http_req_duration........................................................: avg=1.38s min=0s med=1.06s max=7.78s p(90)=1.88s p(95)=7.38s
{ endpoint: "/api/event", domain: "dummy.site/heavy" }.................: avg=1.37s min=0s med=1.05s max=7.77s p(90)=1.86s p(95)=7.38s
{ endpoint: "/api/event", domain: "dummy.site/light" }.................: avg=1.54s min=0s med=1.41s max=7.78s p(90)=1.91s p(95)=7.56s
{ endpoint: "/api/health" }............................................: avg=0s min=0s med=0s max=0s p(90)=0s p(95)=0s
{ endpoint: "/api/stats/:domain/pages", domain: "dummy.site/heavy" }...: avg=1.71s min=279.43ms med=912.92ms max=7.07s p(90)=3.99s p(95)=5.53s
{ endpoint: "/api/stats/:domain/pages", domain: "dummy.site/light" }...: avg=738.31ms min=282.4ms med=437.64ms max=1.77s p(90)=1.45s p(95)=1.61s
{ endpoint: "/api/system/health/ready" }...............................: avg=209.82ms min=190.77ms med=209.82ms max=228.87ms p(90)=225.06ms p(95)=226.96ms
{ endpoint: "/api/v2/query", domain: "dummy.site/heavy" }..............: avg=3.86s min=1.8s med=1.99s max=7.78s p(90)=6.62s p(95)=7.2s
{ endpoint: "/api/v2/query", domain: "dummy.site/light" }..............: avg=1s min=371ms med=989.72ms max=1.65s p(90)=1.52s p(95)=1.58s
{ expected_response:true }.............................................: avg=1.12s min=111.27ms med=1.19s max=2.15s p(90)=1.8s p(95)=1.86s
http_req_failed..........................................................: 21.60% 124 out of 574
{ endpoint: "/api/event", domain: "dummy.site/heavy" }.................: 21.95% 110 out of 501
{ endpoint: "/api/event", domain: "dummy.site/light" }.................: 19.60% 10 out of 51
{ endpoint: "/api/health" }............................................: 100.00% 1 out of 1
{ endpoint: "/api/stats/:domain/pages", domain: "dummy.site/heavy" }...: 14.28% 1 out of 7
{ endpoint: "/api/stats/:domain/pages", domain: "dummy.site/light" }...: 16.66% 1 out of 6
{ endpoint: "/api/system/health/ready" }...............................: 0.00% 0 out of 2
{ endpoint: "/api/v2/query", domain: "dummy.site/heavy" }..............: 33.33% 1 out of 3
{ endpoint: "/api/v2/query", domain: "dummy.site/light" }..............: 0.00% 0 out of 3
http_reqs................................................................: 574 18.507434/s

EXECUTION
iteration_duration.......................................................: avg=6.67s min=332.62ms med=1.92s max=30.01s p(90)=30s p(95)=30s
iterations...............................................................: 574 18.507434/s
vus......................................................................: 48 min=0 max=420
vus_max..................................................................: 8000 min=6005 max=8000

NETWORK
data_received............................................................: 1.7 MB 54 kB/s
data_sent................................................................: 1.0 MB 33 kB/s
```
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