github.com/kubewharf/katalyst-core@v0.5.3/cmd/katalyst-agent/app/options/eviction/cpu_pressure_eviction.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 eviction
    18  
    19  import (
    20  	"time"
    21  
    22  	cliflag "k8s.io/component-base/cli/flag"
    23  
    24  	evictionconfig "github.com/kubewharf/katalyst-core/pkg/config/agent/eviction"
    25  )
    26  
    27  const (
    28  	defaultLoadEvictionSyncPeriod = 30 * time.Second
    29  )
    30  
    31  // CPUPressureEvictionOptions is the options of CPUPressureEviction
    32  type CPUPressureEvictionOptions struct {
    33  	LoadEvictionSyncPeriod time.Duration
    34  }
    35  
    36  // NewCPUPressureEvictionOptions returns a new CPUPressureEvictionOptions
    37  func NewCPUPressureEvictionOptions() *CPUPressureEvictionOptions {
    38  	return &CPUPressureEvictionOptions{
    39  		LoadEvictionSyncPeriod: defaultLoadEvictionSyncPeriod,
    40  	}
    41  }
    42  
    43  // AddFlags parses the flags to CPUPressureEvictionOptions
    44  func (o *CPUPressureEvictionOptions) AddFlags(fss *cliflag.NamedFlagSets) {
    45  	fs := fss.FlagSet("eviction-cpu-pressure")
    46  
    47  	fs.DurationVar(&o.LoadEvictionSyncPeriod, "eviction-load-sync-period",
    48  		o.LoadEvictionSyncPeriod, "cpu load eviction syncing period")
    49  }
    50  
    51  // ApplyTo applies CPUPressureEvictionOptions to CPUPressureEvictionConfiguration
    52  func (o *CPUPressureEvictionOptions) ApplyTo(c *evictionconfig.CPUPressureEvictionConfiguration) error {
    53  	c.LoadEvictionSyncPeriod = o.LoadEvictionSyncPeriod
    54  	return nil
    55  }