github.com/bytedance/gopkg@v0.0.0-20240514070511-01b2cbcf35e1/util/gctuner/mem.go (about)

     1  // Copyright 2022 ByteDance 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  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package gctuner
    16  
    17  import (
    18  	"runtime"
    19  )
    20  
    21  var memStats runtime.MemStats
    22  
    23  func readMemoryInuse() uint64 {
    24  	runtime.ReadMemStats(&memStats)
    25  	return memStats.HeapInuse
    26  }