feat(cpu/hintoptimizer): add resource package hint optimizer

Implement a new hint optimizer that considers resource package allocations when providing topology hints. The optimizer filters NUMA nodes based on available resources in the specified package, ensuring pods only get hints for nodes with sufficient capacity.

Author: luomingmeng

pkg/agent/qrm-plugins/cpu/dynamicpolicy/hintoptimizer/policy/resourcepackage/optimizer.go

@@ -0,0 +1,188 @@
+/*
+Copyright 2022 The Katalyst Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package resourcepackage
+
+import (
+	"context"
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/util/sets"
+	pluginapi "k8s.io/kubelet/pkg/apis/resourceplugin/v1alpha1"
+
+	"github.com/kubewharf/katalyst-core/pkg/agent/qrm-plugins/cpu/dynamicpolicy/hintoptimizer"
+	"github.com/kubewharf/katalyst-core/pkg/agent/qrm-plugins/cpu/dynamicpolicy/hintoptimizer/policy"
+	hintoptimizerutil "github.com/kubewharf/katalyst-core/pkg/agent/qrm-plugins/cpu/dynamicpolicy/hintoptimizer/util"
+	"github.com/kubewharf/katalyst-core/pkg/agent/qrm-plugins/cpu/dynamicpolicy/state"
+	"github.com/kubewharf/katalyst-core/pkg/config"
+	"github.com/kubewharf/katalyst-core/pkg/metaserver"
+	"github.com/kubewharf/katalyst-core/pkg/metrics"
+	"github.com/kubewharf/katalyst-core/pkg/util/general"
+	"github.com/kubewharf/katalyst-core/pkg/util/native"
+	qosutil "github.com/kubewharf/katalyst-core/pkg/util/qos"
+	resourcepackage "github.com/kubewharf/katalyst-core/pkg/util/resource-package"
+)
+
+const HintOptimizerNameResourcePackage = "resource_package"
+
+// resourcePackageHintOptimizer implements the HintOptimizer interface based on resource package information.
+type resourcePackageHintOptimizer struct {
+	conf       *config.Configuration
+	metaServer *metaserver.MetaServer
+	emitter    metrics.MetricEmitter
+	state      state.State
+}
+
+// NewResourcePackageHintOptimizer creates a new resourcePackageHintOptimizer.
+func NewResourcePackageHintOptimizer(
+	options policy.HintOptimizerFactoryOptions,
+) (hintoptimizer.HintOptimizer, error) {
+	return &resourcePackageHintOptimizer{
+		conf:       options.Conf,
+		metaServer: options.MetaServer,
+		emitter:    options.Emitter,
+		state:      options.State,
+	}, nil
+}
+
+// OptimizeHints optimizes the topology hints based on resource package information.
+func (o *resourcePackageHintOptimizer) OptimizeHints(
+	request hintoptimizer.Request,
+	hints *pluginapi.ListOfTopologyHints,
+) error {
+	err := hintoptimizerutil.GenericOptimizeHintsCheck(request, hints)
+	if err != nil {
+		general.Errorf("GenericOptimizeHintsCheck failed with error: %v", err)
+		return err
+	}
+
+	if qosutil.AnnotationsIndicateNUMAExclusive(request.Annotations) {
+		general.Infof("skip resourcePackageHintOptimizer for exclusive numa pod: %s/%s, container: %s",
+			request.PodNamespace, request.PodName, request.ContainerName)
+		return hintoptimizerutil.ErrHintOptimizerSkip
+	}
+
+	resourcePackage := resourcepackage.GetResourcePackageName(request.ResourceRequest.Annotations)
+	if resourcePackage == "" {
+		general.Errorf("skip resourcePackageHintOptimizer for pod resource package not found in annotation")
+		return hintoptimizerutil.ErrHintOptimizerSkip
+	}
+
+	resourcePackageAllocatableMap, err := o.getResourcePackageAllocatable(resourcePackage)
+	if err != nil {
+		general.Errorf("getResourcePackageAllocatable failed with error: %v", err)
+		return err
+	}
+
+	resourcePackageAllocatedMap, err := o.getResourcePackageAllocated(resourcePackage)
+	if err != nil {
+		general.Errorf("getResourcePackageAllocated failed with error: %v", err)
+		return err
+	}
+
+	// Optimize hints based on resource package information
+	err = o.populateHintsByResourcePackage(hints, request.CPURequest, resourcePackageAllocatableMap, resourcePackageAllocatedMap)
+	if err != nil {
+		general.Errorf("populateHintsByResourcePackage failed with error: %v", err)
+		return err
+	}
+
+	return nil
+}
+
+// Run starts the resource package hint optimizer.
+func (o *resourcePackageHintOptimizer) Run(stopCh <-chan struct{}) {
+	// Resource package hint optimizer doesn't need to run background tasks
+	<-stopCh
+}
+
+// populateHintsByResourcePackage optimizes hints based on resource package information.
+func (o *resourcePackageHintOptimizer) populateHintsByResourcePackage(
+	hints *pluginapi.ListOfTopologyHints,
+	cpuRequest float64,
+	resourcePackageAllocatableMap map[int]float64,
+	resourcePackageAllocatedMap map[int]float64,
+) error {
+	canAllocateNodes := sets.NewInt()
+	for nodeID, allocatable := range resourcePackageAllocatableMap {
+		if allocatable-resourcePackageAllocatedMap[nodeID] >= cpuRequest {
+			canAllocateNodes.Insert(nodeID)
+		}
+	}
+
+	optimizedHints := make([]*pluginapi.TopologyHint, 0, len(hints.Hints))
+	for _, hint := range hints.Hints {
+		if len(hint.Nodes) != 1 {
+			continue
+		}
+
+		if canAllocateNodes.Has(int(hint.Nodes[0])) {
+			optimizedHints = append(optimizedHints, hint)
+		}
+	}
+
+	hints.Hints = optimizedHints
+	return nil
+}
+
+func (o *resourcePackageHintOptimizer) getResourcePackageAllocatable(resourcePackage string) (map[int]float64, error) {
+	// Get resource package information from meta server
+	resourcePackageMap, err := o.metaServer.NodeResourcePackages(context.Background())
+	if err != nil {
+		return nil, fmt.Errorf("NodeResourcePackages failed with error: %v", err)
+	}
+
+	allocatable := make(map[int]float64)
+	for nodeID, packages := range resourcePackageMap {
+		for _, pkg := range packages {
+			if pkg.PackageName == resourcePackage {
+				if pkg.Allocatable == nil {
+					continue
+				}
+
+				// Use the native package to get CPU quantity safely
+				cpuQuantity := native.CPUQuantityGetter()(*pkg.Allocatable)
+				if cpuQuantity.IsZero() {
+					continue
+				}
+
+				allocatable[nodeID] = float64(cpuQuantity.MilliValue()) / 1000
+			}
+		}
+	}
+	return allocatable, nil
+}
+
+func (o *resourcePackageHintOptimizer) getResourcePackageAllocated(resourcePackage string) (map[int]float64, error) {
+	machineState := o.state.GetMachineState()
+	allocated := make(map[int]float64)
+	for nodeID, nodeState := range machineState {
+		if nodeState == nil {
+			continue
+		}
+
+		for _, entries := range nodeState.PodEntries {
+			for _, entry := range entries {
+				if entry == nil || resourcepackage.GetResourcePackageName(entry.Annotations) != resourcePackage {
+					continue
+				}
+
+				allocated[nodeID] += entry.RequestQuantity
+			}
+		}
+	}
+	return allocated, nil
+}