github.com/kubewharf/katalyst-core@v0.5.3/pkg/agent/qrm-plugins/cpu/dynamicpolicy/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 dynamicpolicy
    18  
    19  import (
    20  	"fmt"
    21  	"math"
    22  
    23  	pluginapi "k8s.io/kubelet/pkg/apis/resourceplugin/v1alpha1"
    24  
    25  	apiconsts "github.com/kubewharf/katalyst-api/pkg/consts"
    26  	cpuconsts "github.com/kubewharf/katalyst-core/pkg/agent/qrm-plugins/cpu/consts"
    27  	"github.com/kubewharf/katalyst-core/pkg/agent/qrm-plugins/cpu/dynamicpolicy/state"
    28  	"github.com/kubewharf/katalyst-core/pkg/util/general"
    29  	"github.com/kubewharf/katalyst-core/pkg/util/machine"
    30  )
    31  
    32  func getProportionalSize(oldPoolSize, oldTotalSize, newTotalSize int, ceil bool) int {
    33  	if ceil {
    34  		return int(math.Ceil(float64(newTotalSize) * (float64(oldPoolSize) / float64(oldTotalSize))))
    35  	} else {
    36  		return int(float64(newTotalSize) * (float64(oldPoolSize) / float64(oldTotalSize)))
    37  	}
    38  }
    39  
    40  func generateMachineStateFromPodEntries(topology *machine.CPUTopology, podEntries state.PodEntries) (state.NUMANodeMap, error) {
    41  	return state.GenerateMachineStateFromPodEntries(topology, podEntries, cpuconsts.CPUResourcePluginPolicyNameDynamic)
    42  }
    43  
    44  // updateAllocationInfoByReq updates allocationInfo by latest req when admitting active pod,
    45  // because qos level and annotations will change after we support customized updater of enhancements and qos level
    46  func updateAllocationInfoByReq(req *pluginapi.ResourceRequest, allocationInfo *state.AllocationInfo) error {
    47  	if req == nil {
    48  		return fmt.Errorf("updateAllocationInfoByReq got ni l req")
    49  	} else if allocationInfo == nil {
    50  		return nil
    51  	}
    52  
    53  	if req.Annotations[apiconsts.PodAnnotationQoSLevelKey] != "" &&
    54  		req.Annotations[apiconsts.PodAnnotationQoSLevelKey] != allocationInfo.QoSLevel {
    55  		general.Infof("update allocationInfo QoS level from %s to %s",
    56  			allocationInfo.QoSLevel, req.Annotations[apiconsts.PodAnnotationQoSLevelKey])
    57  		allocationInfo.QoSLevel = req.Annotations[apiconsts.PodAnnotationQoSLevelKey]
    58  	}
    59  
    60  	allocationInfo.Annotations = general.DeepCopyMap(req.Annotations)
    61  	return nil
    62  }