github.com/kubewharf/katalyst-core@v0.5.3/pkg/metaserver/spd/util.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 spd 18 19 import ( 20 "context" 21 22 "k8s.io/apimachinery/pkg/api/errors" 23 metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" 24 25 workloadapi "github.com/kubewharf/katalyst-api/pkg/apis/workload/v1alpha1" 26 "github.com/kubewharf/katalyst-api/pkg/consts" 27 ) 28 29 const ( 30 defaultMemoryBandwidthRequest = 0 31 ) 32 33 // GetContainerMemoryBandwidthRequest gets the memory bandwidth request for pod with given cpu request 34 func GetContainerMemoryBandwidthRequest(profilingManager ServiceProfilingManager, podMeta metav1.ObjectMeta, cpuRequest int) (int, error) { 35 mbwRequest := defaultMemoryBandwidthRequest 36 memoryBandwidth, err := profilingManager.ServiceAggregateMetrics(context.Background(), podMeta, consts.SPDAggMetricNameMemoryBandwidth, 37 false, workloadapi.Avg, workloadapi.Sum, workloadapi.Max) 38 if err != nil && !errors.IsNotFound(err) { 39 return 0, err 40 } else if err == nil && memoryBandwidth != nil { 41 mbwRequest = int(memoryBandwidth.Value()) * cpuRequest 42 } 43 44 return mbwRequest, nil 45 }