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fix #51135 make CFS quota period configurable, adds a cli flag and config option to kubelet to be able to set cpu.cfs_period and defaults to 100ms as before.

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It requires to enable feature gate CustomCPUCFSQuotaPeriod.

Signed-off-by: Sandor Szücs <sandor.szuecs@zalando.de>
This commit is contained in:
Sandor Szücs
2018-05-04 17:25:22 +02:00
parent 380931aca7
commit 588d2808b7
32 changed files with 627 additions and 32 deletions
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7
pkg/features/kube_features.go
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@@ -155,6 +155,12 @@ const (
// Alternative container-level CPU affinity policies.
CPUManager utilfeature.Feature = "CPUManager"
// owner: @szuecs
// alpha: v1.12
//
// Enable nodes to change CPUCFSQuotaPeriod
CPUCFSQuotaPeriod utilfeature.Feature = "CustomCPUCFSQuotaPeriod"
// owner: @derekwaynecarr
// beta: v1.10
//
@@ -408,6 +414,7 @@ var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureS
ExpandInUsePersistentVolumes: {Default: false, PreRelease: utilfeature.Alpha},
AttachVolumeLimit: {Default: false, PreRelease: utilfeature.Alpha},
CPUManager: {Default: true, PreRelease: utilfeature.Beta},
CPUCFSQuotaPeriod: {Default: false, PreRelease: utilfeature.Alpha},
ServiceNodeExclusion: {Default: false, PreRelease: utilfeature.Alpha},
MountContainers: {Default: false, PreRelease: utilfeature.Alpha},
VolumeScheduling: {Default: true, PreRelease: utilfeature.Beta},