forked from kubewharf/katalyst-core
78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
/*
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Copyright 2022 The Katalyst Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package qos
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import (
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"strconv"
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v1 "k8s.io/api/core/v1"
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"github.com/kubewharf/katalyst-api/pkg/consts"
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"github.com/kubewharf/katalyst-core/pkg/config/generic"
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)
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// IsPodNumaBinding checks whether the pod needs numa-binding
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func IsPodNumaBinding(qosConf *generic.QoSConfiguration, pod *v1.Pod) bool {
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qosLevel, _ := qosConf.GetQoSLevelForPod(pod)
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if qosLevel != consts.PodAnnotationQoSLevelDedicatedCores {
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return false
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}
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memoryEnhancement := ParseKatalystQOSEnhancement(qosConf.GetQoSEnhancementsForPod(pod), consts.PodAnnotationMemoryEnhancementKey)
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return AnnotationsIndicateNUMABinding(memoryEnhancement)
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}
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func AnnotationsIndicateNUMABinding(annotations map[string]string) bool {
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return annotations[consts.PodAnnotationMemoryEnhancementNumaBinding] ==
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consts.PodAnnotationMemoryEnhancementNumaBindingEnable
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}
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func AnnotationsIndicateNUMAExclusive(annotations map[string]string) bool {
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return AnnotationsIndicateNUMABinding(annotations) &&
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annotations[consts.PodAnnotationMemoryEnhancementNumaExclusive] ==
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consts.PodAnnotationMemoryEnhancementNumaExclusiveEnable
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}
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// GetRSSOverUseEvictThreshold parse the user specified threshold and checks if it's valid
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func GetRSSOverUseEvictThreshold(qosConf *generic.QoSConfiguration, pod *v1.Pod) (threshold *float64, invalid bool) {
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memoryEnhancement := ParseKatalystQOSEnhancement(qosConf.GetQoSEnhancementsForPod(pod), consts.PodAnnotationMemoryEnhancementKey)
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thresholdStr, ok := memoryEnhancement[consts.PodAnnotationMemoryEnhancementRssOverUseThreshold]
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if !ok {
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return
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}
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parsedThreshold, parseErr := strconv.ParseFloat(thresholdStr, 64)
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if parseErr != nil {
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invalid = true
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return
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}
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if !isValidRatioThreshold(parsedThreshold) {
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invalid = true
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return
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}
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threshold = &parsedThreshold
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return
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}
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func isValidRatioThreshold(threshold float64) bool {
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return threshold > 0
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}
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