mirror of
https://github.com/cubefs/cubefs.git
synced 2026-08-02 02:00:56 +00:00
112 lines
2.7 KiB
Go
112 lines
2.7 KiB
Go
// Copyright 2024 The CubeFS Authors.
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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
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package util
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import (
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"runtime/debug"
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"time"
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"github.com/cubefs/cubefs/util/loadutil"
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)
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type RecycleTimer struct {
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interval time.Duration
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recyclePercent float64
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minRecycleLimit uint64
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panicHook func(r interface{})
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statHook func(totalPercent float64, currentProcess uint64, currentGoHeap uint64)
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stopC chan interface{}
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}
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func (r *RecycleTimer) emitPanicHook(p interface{}) {
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if handle := r.panicHook; handle != nil {
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handle(p)
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}
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}
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func (r *RecycleTimer) emitStatHook(totalPercent float64, currentProcess uint64, currentGoHeap uint64) {
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if handle := r.statHook; handle != nil {
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handle(totalPercent, currentProcess, currentGoHeap)
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}
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}
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func (r *RecycleTimer) start() (err error) {
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total, err := loadutil.GetTotalMemory()
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if err != nil {
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return
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}
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go func() {
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defer func() {
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if p := recover(); p != nil {
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r.emitPanicHook(p)
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}
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}()
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timer := time.NewTicker(r.interval)
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defer timer.Stop()
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for {
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select {
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case <-r.stopC:
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return
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case <-timer.C:
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used, err := loadutil.GetUsedMemory()
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if err != nil {
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return
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}
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percent := float64(used) / float64(total)
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if percent >= r.recyclePercent {
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used, err = loadutil.GetCurrentProcessMemory()
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if err != nil {
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return
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}
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goHeapSize := loadutil.GetGoInUsedHeap()
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r.emitStatHook(percent, used, goHeapSize)
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if used > goHeapSize+r.minRecycleLimit {
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debug.FreeOSMemory()
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}
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}
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}
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}
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}()
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return
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}
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func (r *RecycleTimer) Stop() {
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close(r.stopC)
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}
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func (r *RecycleTimer) SetPanicHook(handle func(r interface{})) {
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r.panicHook = handle
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}
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func (r *RecycleTimer) SetStatHook(handle func(totalPercent float64, currentProcess uint64, currentGoHeap uint64)) {
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r.statHook = handle
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}
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func NewRecycleTimer(interval time.Duration, recyclePercent float64, minRecycleLimit uint64) (r *RecycleTimer, err error) {
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r = &RecycleTimer{
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interval: interval,
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recyclePercent: recyclePercent,
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minRecycleLimit: minRecycleLimit,
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stopC: make(chan interface{}),
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}
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err = r.start()
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if err != nil {
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r.Stop()
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return
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}
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return
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}
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