github.com/whtcorpsinc/milevadb-prod@v0.0.0-20211104133533-f57f4be3b597/soliton/profile/trackerRecorder.go (about)

     1  // Copyright 2020 WHTCORPS INC, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package profile
    15  
    16  import (
    17  	"time"
    18  
    19  	"github.com/whtcorpsinc/log"
    20  	"github.com/whtcorpsinc/milevadb/soliton/ekvcache"
    21  	"go.uber.org/zap"
    22  )
    23  
    24  var defCaus = &DefCauslector{}
    25  
    26  // HeapProfileForGlobalMemTracker record heap profile data into each global function memory tracker
    27  func HeapProfileForGlobalMemTracker(d time.Duration) {
    28  	log.Info("Mem Profile Tracker started")
    29  	t := time.NewTicker(d)
    30  	defer t.Stop()
    31  	for {
    32  		select {
    33  		case <-t.C:
    34  			err := heapProfileForGlobalMemTracker()
    35  			if err != nil {
    36  				log.Warn("profile memory into tracker failed", zap.Error(err))
    37  			}
    38  		}
    39  	}
    40  }
    41  
    42  func heapProfileForGlobalMemTracker() error {
    43  	bytes, err := defCaus.getFuncMemUsage(ekvcache.ProfileName)
    44  	if err != nil {
    45  		return err
    46  	}
    47  	defer func() {
    48  		if p := recover(); p != nil {
    49  			log.Error("GlobalLRUMemUsageTracker meet panic", zap.Any("panic", p), zap.Stack("stack"))
    50  		}
    51  	}()
    52  	ekvcache.GlobalLRUMemUsageTracker.ReplaceBytesUsed(bytes)
    53  	return nil
    54  }