ci-operator/platform-balance: Subdir for balancing process

ci-operator/README.md

@@ -371,28 +371,7 @@ ci-operator \
 
 ### Rebalancing tests among platforms
 
-If test volume for a given platform exceeds [the Boskos lease capacity][boskos-leases], [`jobs-failing-with-lease-acquire-timeout`](../clusters/app.ci/prow-monitoring/mixins/prometheus_out/prometheus-prow-rules_prometheusrule.yaml) will fire.
-Presubmit jobs may be rebalanced to move platform-agnostic jobs to platforms with available capacity.
-Component teams may mark their presubmit jobs as platform-agnostic by configuring `as` names which exclude the platform slug (e.g. `aws`), whose absence is used as a marker of "this test is platform-agnostic".
-For example, see [release#10152][release-10152].
-To locate platform-specific jobs which might be good candidates for moving to the platform-agnostic pool, you can use:
-
-```console
-$ hack/step-jobs-by-platform.py
-workflows which need alternative platforms to support balancing:
-  baremetalds-e2e
-  ipi-aws
-  ipi-aws-ovn-hybrid
-  openshift-e2e-aws-csi
-...
-count	platform	status	alternatives	job
-39	gcp	balanceable	aws,azure,vsphere	pull-ci-openshift-cluster-version-operator-master-e2e
-26	aws	unknown	azure,gcp,vsphere	pull-ci-openshift-sriov-dp-admission-controller-master-e2e-aws
-15	aws	unknown	azure,gcp,vsphere	pull-ci-openshift-cluster-authentication-operator-master-e2e-aws
-10	aws	balanceable	azure,vsphere	pull-ci-openshift-machine-config-operator-master-e2e-ovn-step-registry
-9	aws	unknown	gcp	pull-ci-openshift-cluster-samples-operator-release-4.1-e2e-aws-image-ecosystem
-...
-```
+Balancing platform-agnostic jobs among available platforms is discussed [here](platform-balance/README.md).
 
 ### Rebalancing AWS tests among regions and zones
 
@@ -425,4 +404,3 @@ Focusing on [step-registry](step-registry) consumers, you could avoid us-east-1b
 
 [aws-creating-shared-subnets]: https://github.com/openshift/release/pull/6949/commits/1b21187950b7d1d83f87774e9c52e74616e1b6c4
 [boskos-leases]: https://steps.ci.openshift.org/help/leases
-[release-10152]: https://github.com/openshift/release/pull/10152

ci-operator/platform-balance/OWNERS

@@ -0,0 +1,4 @@
+# See the OWNERS docs: https://git.k8s.io/community/contributors/guide/owners.md
+
+approvers:
+- wking

ci-operator/platform-balance/README.md

@@ -0,0 +1,28 @@
+# Rebalancing tests among platforms
+
+If test volume for a given platform exceeds [the Boskos lease capacity][boskos-leases], [`jobs-failing-with-lease-acquire-timeout`](../../clusters/app.ci/prow-monitoring/mixins/prometheus_out/prometheus-prow-rules_prometheusrule.yaml) will fire.
+Presubmit jobs may be rebalanced to move platform-agnostic jobs to platforms with available capacity.
+Component teams may mark their presubmit jobs as platform-agnostic by configuring `as` names which exclude the platform slug (e.g. `aws`), whose absence is used as a marker of "this test is platform-agnostic".
+For example, see [release#10152][release-10152].
+To locate platform-specific jobs which might be good candidates for moving to the platform-agnostic pool, you can use:
+
+```console
+$ ci-operator/platform-balance/step-jobs-by-platform.py
+workflows which need alternative platforms to support balancing:
+  baremetalds-e2e
+  ipi-aws
+  ipi-aws-ovn-hybrid
+  openshift-e2e-aws-csi
+...
+count	platform	status	alternatives	job
+39	gcp	balanceable	aws,azure,vsphere	pull-ci-openshift-cluster-version-operator-master-e2e
+26	aws	unknown	azure,gcp,vsphere	pull-ci-openshift-sriov-dp-admission-controller-master-e2e-aws
+15	aws	unknown	azure,gcp,vsphere	pull-ci-openshift-cluster-authentication-operator-master-e2e-aws
+10	aws	balanceable	azure,vsphere	pull-ci-openshift-machine-config-operator-master-e2e-ovn-step-registry
+9	aws	unknown	gcp	pull-ci-openshift-cluster-samples-operator-release-4.1-e2e-aws-image-ecosystem
+...
+```
+
+
+[boskos-leases]: https://steps.ci.openshift.org/help/leases
+[release-10152]: https://github.com/openshift/release/pull/10152