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[doc] scheduler_perf: describe suite configuration in more detail

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The configuration file was design as a yaml file on purpose.
To easily extend the test cases without a need to modify
the testing binary. Also, it's possible to extend the configuration
itself to enrich individual test cases.
This commit is contained in:
Jan Chaloupka 2020-02-25 16:58:50 +01:00
parent e6c4ac3f0b
commit b09676921c
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test/integration/scheduler_perf/README.md
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@ -68,6 +68,26 @@ To produce a cpu profile:
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TIMEOUT="-timeout=3600s" KUBE_TEST_VMODULE="''" KUBE_TEST_ARGS="-alsologtostderr=false -logtostderr=false -run=^$$ -benchtime=1ns -bench=BenchmarkPerfScheduling -cpuprofile ~/cpu-profile.out"
```
### How to configure bechmark tests
Configuration file located under config/performance-config.yaml contains a list of templates.
Each template allows to set:
- node manifest
- manifests for initial and testing pod
- number of nodes, number of initial and testing pods
- templates for PVs and PVCs
- feature gates
See `simpleTestCases` data type implementation for available configuration for each template.
Initial pods create a state of a cluster before the scheduler performance measurement can begin.
Testing pods are then subject to performance measurement.
The configuration file under config/performance-config.yaml contains a default list of templates to cover
various scenarios. In case you want to add your own, you can extend the list with new templates.
It's also possible to extend `simpleTestCases` data type, respectively its underlying data types
to extend configuration of possible test cases.
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