c9e9ae555f
* Add license headers & NOTICE * generated protobuf --------- Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
// Copyright 2023 LiveKit, Inc.
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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 utils
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import (
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"runtime"
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"github.com/mackerelio/go-osstat/cpu"
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)
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type osStatCPUMonitor struct {
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prev *cpu.Stats
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}
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func newOSStatCPUMonitor() (*osStatCPUMonitor, error) {
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stats, err := cpu.Get()
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if err != nil {
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return nil, err
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}
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return &osStatCPUMonitor{
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prev: stats,
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}, nil
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}
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func (p *osStatCPUMonitor) getCPUIdle() (float64, error) {
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next, err := cpu.Get()
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if err != nil {
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return 0, err
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}
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idleRatio := float64(next.Idle-p.prev.Idle) / float64(next.Total-p.prev.Total)
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p.prev = next
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return p.numCPU() * idleRatio, nil
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}
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func (p *osStatCPUMonitor) numCPU() float64 {
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return float64(runtime.NumCPU())
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}
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