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policy.go
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policy.go
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/*
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 provisionpolicy
import (
"sync"
"github.com/kubewharf/katalyst-core/pkg/agent/sysadvisor/metacache"
"github.com/kubewharf/katalyst-core/pkg/agent/sysadvisor/types"
"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/machine"
)
// ProvisionPolicy generates resource provision result based on configured algorithm
type ProvisionPolicy interface {
// SetEssentials set essentials for policy update
SetEssentials(resourceEssentials types.ResourceEssentials, controlEssentials types.ControlEssentials)
// SetPodSet overwrites policy's pod/container record
SetPodSet(types.PodSet)
// SetBindingNumas overwrites the numa ids this policy interested in
SetBindingNumas(machine.CPUSet)
// Update triggers an episode of algorithm update
Update() error
// GetControlKnobAdjusted returns the latest legal control knob value
GetControlKnobAdjusted() (types.ControlKnob, error)
}
type InitFunc func(regionName string, regionType types.QoSRegionType, ownerPoolName string,
conf *config.Configuration, extraConfig interface{}, metaReader metacache.MetaReader,
metaServer *metaserver.MetaServer, emitter metrics.MetricEmitter) ProvisionPolicy
var initializers sync.Map
func RegisterInitializer(name types.CPUProvisionPolicyName, initFunc InitFunc) {
initializers.Store(name, initFunc)
}
func GetRegisteredInitializers() map[types.CPUProvisionPolicyName]InitFunc {
res := make(map[types.CPUProvisionPolicyName]InitFunc)
initializers.Range(func(key, value interface{}) bool {
res[key.(types.CPUProvisionPolicyName)] = value.(InitFunc)
return true
})
return res
}