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resctrl_executor.go
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/
resctrl_executor.go
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/*
Copyright 2022 The Koordinator 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 executor
import (
"sort"
"strconv"
"strings"
sysutil "github.com/koordinator-sh/koordinator/pkg/koordlet/util/system"
)
const (
// L3SchemataPrefix is the prefix of l3 cat schemata
L3SchemataPrefix = "L3:"
// MbSchemataPrefix is the prefix of l3 cat schemata
MbSchemataPrefix = "MB:"
)
func CalculateL3SchemataResource(group, schemataDelta string, l3Num int) ResourceUpdater {
schemata := L3SchemataPrefix
// the last ';' will be auto ignored
for i := 0; i < l3Num; i++ {
schemata = schemata + strconv.Itoa(i) + "=" + schemataDelta + ";"
}
// the trailing '\n' is necessary to append
schemata += "\n"
schemataFile := sysutil.GetResctrlSchemataFilePath(group)
// write to $schemataFile with valued $schemata
updaterKey := schemataFile + ":" + L3SchemataPrefix
return NewDetailCommonResourceUpdater(updaterKey, schemataFile, schemata, GroupOwnerRef(group), UpdateResctrlSchemataFunc)
}
func CalculateMbSchemataResource(group, schemataDelta string, l3Num int) ResourceUpdater {
schemata := MbSchemataPrefix
// the last ';' will be auto ignored
for i := 0; i < l3Num; i++ {
schemata = schemata + strconv.Itoa(i) + "=" + schemataDelta + ";"
}
// the trailing '\n' is necessary to append
schemata += "\n"
schemataFile := sysutil.GetResctrlSchemataFilePath(group)
// write to $schemataFile with valued $schemata
updaterKey := schemataFile + ":" + MbSchemataPrefix
return NewDetailCommonResourceUpdater(updaterKey, schemataFile, schemata, GroupOwnerRef(group), UpdateResctrlSchemataFunc)
}
func CalculateL3TasksResource(group string, taskIds []int) ResourceUpdater {
// join ids into updater value and make the id updates one by one
tasksPath := sysutil.GetResctrlTasksFilePath(group)
// use ordered slice
sort.Ints(taskIds)
var builder strings.Builder
for _, id := range taskIds {
builder.WriteString(strconv.Itoa(id))
builder.WriteByte('\n')
}
return NewDetailCommonResourceUpdater(tasksPath, tasksPath, builder.String(), GroupOwnerRef(group), UpdateResctrlTasksFunc)
}