Files
kubernetes/test
Kubernetes Submit Queue 75aaacc53e Merge pull request #57215 from misterikkit/topologyBenchmark
Automatic merge from submit-queue (batch tested with PRs 57215, 57489). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Add scheduler benchmark tests for PodAntiAffinity rules

**What this PR does / why we need it**:
This adds a benchmark test that measures the scheduling latency of pods with PodAntiAffinity rules where topologyKey=kubernetes.io/hostname.

Additionally, this PR imposes a minimum `b.N` value to make the test results more meaningful.

The benchmark is needed to validate any performance improvements made for #54189.


Command used to invoke:
```sh
make test-integration WHAT=./test/integration/scheduler_perf KUBE_TEST_ARGS="-run=xxxx -bench=."
```

Sample output:
```
pkg: k8s.io/kubernetes/test/integration/scheduler_perf
BenchmarkScheduling/100Nodes/0Pods-40        100          36316838 ns/op
BenchmarkScheduling/100Nodes/1000Pods-40                     100          69460001 ns/op
BenchmarkScheduling/1000Nodes/0Pods-40                       100         193755560 ns/op
BenchmarkScheduling/1000Nodes/1000Pods-40                    100         343451472 ns/op
BenchmarkSchedulingAntiAffinity/500Nodes/250Pods-40                  250         127236420 ns/op
BenchmarkSchedulingAntiAffinity/500Nodes/5000Pods-40                 250         478661925 ns/op
PASS
ok      k8s.io/kubernetes/test/integration/scheduler_perf       354.008s
```

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:


**Release note**:

```release-note
NONE
```
2017-12-20 18:31:32 -08:00
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