github.com/whtcorpsinc/milevadb-prod@v0.0.0-20211104133533-f57f4be3b597/soliton/memory/meminfo.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 memory
    15  
    16  import (
    17  	"github.com/shirou/gopsutil/mem"
    18  )
    19  
    20  // MemTotal returns the total amount of RAM on this system
    21  func MemTotal() (uint64, error) {
    22  	v, err := mem.VirtualMemory()
    23  	return v.Total, err
    24  }
    25  
    26  // MemUsed returns the total used amount of RAM on this system
    27  func MemUsed() (uint64, error) {
    28  	v, err := mem.VirtualMemory()
    29  	return v.Total - (v.Free + v.Buffers + v.Cached), err
    30  }