forked from kubewharf/katalyst-core
51 lines
1.7 KiB
Go
51 lines
1.7 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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"fmt"
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"math"
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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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// GetPodCPUSuppressionToleranceRate parses cpu suppression tolerance rate for the given pod,
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// and cpu suppression is only supported for reclaim pods. if the given is not nominated with
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// cpu suppression, return max to indicate that it can be suppressed for any degree.
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func GetPodCPUSuppressionToleranceRate(qosConf *generic.QoSConfiguration, pod *v1.Pod) (float64, error) {
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qosLevel, _ := qosConf.GetQoSLevelForPod(pod)
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if qosLevel != consts.PodAnnotationQoSLevelReclaimedCores {
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return 0, fmt.Errorf("qos level %s not support cpu suppression", qosLevel)
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}
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cpuEnhancement := ParseKatalystQOSEnhancement(qosConf.GetQoSEnhancementsForPod(pod), consts.PodAnnotationCPUEnhancementKey)
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suppressionToleranceRateStr, ok := cpuEnhancement[consts.PodAnnotationCPUEnhancementSuppressionToleranceRate]
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if ok {
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suppressionToleranceRate, err := strconv.ParseFloat(suppressionToleranceRateStr, 64)
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if err != nil {
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return 0, err
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}
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return suppressionToleranceRate, nil
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}
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return math.MaxFloat64, nil
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}
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