github.com/kubewharf/katalyst-core@v0.5.3/pkg/scheduler/util/qos.go (about) 1 /* 2 Copyright 2022 The Katalyst Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package util 18 19 import ( 20 "encoding/json" 21 "sync" 22 23 v1 "k8s.io/api/core/v1" 24 "k8s.io/klog/v2" 25 26 "github.com/kubewharf/katalyst-api/pkg/consts" 27 "github.com/kubewharf/katalyst-core/pkg/config/generic" 28 ) 29 30 var ( 31 qosConfig *generic.QoSConfiguration 32 qosConfigSetOnce sync.Once 33 ) 34 35 func SetQoSConfig(config *generic.QoSConfiguration) { 36 qosConfigSetOnce.Do(func() { 37 qosConfig = config 38 }) 39 } 40 41 func IsReclaimedPod(pod *v1.Pod) bool { 42 ok, _ := qosConfig.CheckReclaimedQoSForPod(pod) 43 return ok 44 } 45 46 func IsDedicatedPod(pod *v1.Pod) bool { 47 ok, _ := qosConfig.CheckDedicatedQoSForPod(pod) 48 return ok 49 } 50 51 func IsNumaBinding(pod *v1.Pod) bool { 52 if pod == nil { 53 return false 54 } 55 56 enhancementKey, ok := pod.Annotations[consts.PodAnnotationMemoryEnhancementKey] 57 if !ok { 58 return false 59 } 60 return memoryEnhancement( 61 enhancementKey, 62 consts.PodAnnotationMemoryEnhancementNumaBinding, 63 consts.PodAnnotationMemoryEnhancementNumaBindingEnable) 64 } 65 66 func IsExclusive(pod *v1.Pod) bool { 67 if pod == nil { 68 return false 69 } 70 71 enhancementKey, ok := pod.Annotations[consts.PodAnnotationMemoryEnhancementKey] 72 if !ok { 73 return false 74 } 75 return memoryEnhancement( 76 enhancementKey, 77 consts.PodAnnotationMemoryEnhancementNumaExclusive, 78 consts.PodAnnotationMemoryEnhancementNumaExclusiveEnable) 79 } 80 81 func memoryEnhancement(enhancementStr string, key, value string) bool { 82 if key == "" { 83 return true 84 } 85 if enhancementStr == "" { 86 return false 87 } 88 89 var enhancement map[string]string 90 if err := json.Unmarshal([]byte(enhancementStr), &enhancement); err != nil { 91 klog.Errorf("failed to unmarshal %s: %v", enhancementStr, err) 92 return false 93 } 94 95 enable, ok := enhancement[key] 96 if !ok { 97 return false 98 } 99 100 return enable == value 101 }