mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-07-02 18:14:42 +08:00
103 lines
2.8 KiB
Go
103 lines
2.8 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package guest
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import (
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"context"
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"fmt"
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"yunion.io/x/jsonutils"
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"yunion.io/x/onecloud/pkg/apis/scheduler"
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"yunion.io/x/onecloud/pkg/scheduler/algorithm/predicates"
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"yunion.io/x/onecloud/pkg/scheduler/core"
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)
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// MemoryPredicate filter current resources free memory capacity is meet,
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// if it is satisfied to return the size of the memory that
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// can carry the scheduling request.
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type MemoryPredicate struct {
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predicates.BasePredicate
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}
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func (p *MemoryPredicate) Name() string {
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return "host_memory"
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}
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func (p *MemoryPredicate) Clone() core.FitPredicate {
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return &MemoryPredicate{}
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}
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func (p *MemoryPredicate) PreExecute(ctx context.Context, u *core.Unit, cs []core.Candidater) (bool, error) {
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driver := u.GetHypervisorDriver()
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if driver != nil && !driver.DoScheduleMemoryFilter() {
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return false, nil
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}
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data := u.SchedData()
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if data.Memory <= 0 {
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return false, nil
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}
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return true, nil
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}
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func (p *MemoryPredicate) Execute(ctx context.Context, u *core.Unit, c core.Candidater) (bool, []core.PredicateFailureReason, error) {
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h := predicates.NewPredicateHelper(p, u, c)
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d := u.SchedData()
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useRsvd := h.UseReserved()
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getter := c.Getter()
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freeMemSize := getter.FreeMemorySize(useRsvd)
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reqMemSize := int64(d.Memory)
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if freeMemSize < reqMemSize {
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totalMemSize := getter.TotalMemorySize(useRsvd)
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h.AppendInsufficientResourceError(reqMemSize, totalMemSize, freeMemSize)
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}
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if cpuNumaFree := getter.GetFreeCpuNuma(); cpuNumaFree != nil {
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allcateEnough := false
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if d.CpuNumaPin != nil {
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nodeCount := len(d.CpuNumaPin)
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if scheduler.NodesFreeCpuEnough(nodeCount, d.Ncpu, cpuNumaFree) &&
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scheduler.NodesFreeMemSizeEnough(nodeCount, int(reqMemSize), cpuNumaFree) {
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allcateEnough = true
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}
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} else {
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for nodeCount := 1; nodeCount <= len(cpuNumaFree); nodeCount *= 2 {
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if !scheduler.NodesFreeCpuEnough(nodeCount, d.Ncpu, cpuNumaFree) {
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continue
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}
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if !scheduler.NodesFreeMemSizeEnough(nodeCount, int(reqMemSize), cpuNumaFree) {
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continue
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}
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allcateEnough = true
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}
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}
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if !allcateEnough {
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h.AppendPredicateFailMsg(
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fmt.Sprintf("cpu numa free %s can't alloc with req mem %v req cpu %v ",
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jsonutils.Marshal(cpuNumaFree).String(), d.Memory, d.Ncpu),
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)
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}
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}
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h.SetCapacity(freeMemSize / reqMemSize)
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return h.GetResult()
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}
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