Benchmark and Validate a Knative HTTP service¶

Before you begin

Install Iter8 CLI.
Install Knative and deploy your first Knative Service. As noted at the end of the Knative tutorial, when you curl the Knative service,
```
curl http://hello.default.127.0.0.1.sslip.io
```
you should see the expected output as follows.
```
Hello World!
```

1. Launch experiment¶

We will benchmark and validate SLOs for the Knative HTTP service by launching an Iter8 experiment.

iter8 launch -c load-test-http \
          --set url=http://hello.default.127.0.0.1.sslip.io \
          --set SLOs.error-rate=0 \
          --set SLOs.latency-mean=50 \
          --set SLOs.latency-p90=100 \
          --set SLOs.latency-p'97\.5'=200

In the above experiment, the following SLOs are validated for the Knative service. - error rate is 0 - mean latency is under 50 msec - 90^th percentile latency is under 100 msec - 97.5^th percentile latency is under 200 msec

2. Assert outcomes¶

Assert that the experiment completed without any failures and SLOs are satisfied.

iter8 assert -c completed -c nofailure -c slos

3. View report¶

View a report of the experiment in HTML or text formats as follows.

HTMLText

iter8 report -o html > report.html
# open report.html with a browser. In MacOS, you can use the command:
# open report.html

iter8 report -o text