k8s.io/perf-tests/clusterloader2@v0.0.0-20240304094227-64bdb12da87e/pkg/measurement/common/slos/slo_measurement.go (about)

     1  /*
     2  Copyright 2020 The Kubernetes 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 slos
    18  
    19  import (
    20  	"k8s.io/klog/v2"
    21  	"k8s.io/perf-tests/clusterloader2/pkg/errors"
    22  	"k8s.io/perf-tests/clusterloader2/pkg/measurement"
    23  	"k8s.io/perf-tests/clusterloader2/pkg/util"
    24  )
    25  
    26  const (
    27  	sloMeasurementName = "SLOMeasurement"
    28  )
    29  
    30  var sloMeasurementsNames = []string{"DnsLookupLatency", "SchedulingThroughputPrometheus"}
    31  
    32  func init() {
    33  	if err := measurement.Register(sloMeasurementName, createSLOMeasurements); err != nil {
    34  		klog.Fatalf("Cannot register %s: %v", sloMeasurementName, err)
    35  	}
    36  }
    37  
    38  func createSLOMeasurements() measurement.Measurement {
    39  	sloMeasurement := &sloMeasurement{}
    40  	for _, name := range sloMeasurementsNames {
    41  		m, err := measurement.CreateMeasurement(name)
    42  		if err != nil {
    43  			klog.Fatalf("Cannot create instance of %s: %v", name, err)
    44  		}
    45  		sloMeasurement.measurements = append(sloMeasurement.measurements, m)
    46  	}
    47  	return sloMeasurement
    48  }
    49  
    50  type sloMeasurement struct {
    51  	measurements []measurement.Measurement
    52  	summaries    []measurement.Summary
    53  }
    54  
    55  func (s sloMeasurement) Execute(config *measurement.Config) ([]measurement.Summary, error) {
    56  	errList := errors.NewErrorList()
    57  	for _, m := range s.measurements {
    58  		measurementConfig, err := getMeasurementConfig(config, m.String())
    59  		if err != nil {
    60  			errList.Append(err)
    61  			continue
    62  		}
    63  
    64  		summaries, err := m.Execute(measurementConfig)
    65  		if err != nil {
    66  			errList.Append(err)
    67  			continue
    68  		}
    69  		s.summaries = append(s.summaries, summaries...)
    70  	}
    71  
    72  	if !errList.IsEmpty() {
    73  		return nil, errList
    74  	}
    75  	return s.summaries, nil
    76  }
    77  
    78  func getMeasurementConfig(config *measurement.Config, measurementName string) (*measurement.Config, error) {
    79  	measurementConfig := *config
    80  	measurementConfig.Params = util.CloneMap(config.Params)
    81  
    82  	overrides, err := util.GetMap(config.Params, "overrides")
    83  	if util.IsErrKeyNotFound(err) {
    84  		return &measurementConfig, nil
    85  	}
    86  	if err != nil {
    87  		return nil, err
    88  	}
    89  
    90  	measurementOverrides, err := util.GetMap(overrides, measurementName)
    91  	if util.IsErrKeyNotFound(err) {
    92  		return &measurementConfig, nil
    93  	}
    94  	if err != nil {
    95  		return nil, err
    96  	}
    97  	for k, v := range measurementOverrides {
    98  		measurementConfig.Params[k] = v
    99  	}
   100  
   101  	return &measurementConfig, nil
   102  }
   103  
   104  func (s sloMeasurement) Dispose() {
   105  	for _, m := range s.measurements {
   106  		m.Dispose()
   107  	}
   108  }
   109  
   110  func (s sloMeasurement) String() string {
   111  	return sloMeasurementName
   112  }