はじめに
iOS / macOS にて CPU 負荷、メモリ使用量を得るために Mach を使用する方法があります。
ただ、Mach の関数を直接使用するとポインタの扱いが手間なので、そのあたりを吸収した Swift フレームワークを作成しました。
使い方は以下です。
インストール
CocoaPods
Podfile を作成する
platform :ios, '10.0' # iOS の場合
platform :osx, '10.12' # macOS の場合
use_frameworks!
target 'YOUR-TARGET' do
pod 'Mach-Swift', :git => 'https://github.com/daisuke-t-jp/Mach-Swift.git'
end
インストール
$ pod install
サンプルコード
ホスト(OS)
仮想メモリ情報
import Mach_Swift
// host_statistics(HOST_VM_INFO) 相当
let vm = Mach.Host.Statistics.vmInfo()
print("- freeSize: \(vm.freeSize)") // 空きサイズ (byte)
print("- activeSize: \(vm.activeSize)") // アクティブサイズ (byte)
print("- inactiveSize: \(vm.inactiveSize)") // 非アクティブサイズ (byte)
print("- wireSize: \(vm.wireSize)") // 固定サイズ (byte)
- freeSize: 130482176 - activeSize: 1765789696 - inactiveSize: 1649594368 - wireSize: 2495418368
CPU 負荷
import Mach_Swift
// host_statistics(HOST_CPU_LOAD_INFO) 相当
let cpuLoadInfo = Mach.Host.Statistics.cpuLoadInfo()
print("- userTick: \(cpuLoadInfo.userTick)") // ユーザチック
print("- systemTick: \(cpuLoadInfo.systemTick)") // システムチック
print("- idleTick: \(cpuLoadInfo.idleTick)") // アイドルチック
print("- niceTick: \(cpuLoadInfo.niceTick)") // ナイスチック
- userTick: 785470 - systemTick: 503253 - idleTick: 4632473 - niceTick: 0
基本情報
import Mach_Swift
// host_info(HOST_BASIC_INFO) 相当
let basicInfo = Mach.Host.Info.basicInfo()
print("- maxCPUs: \(basicInfo.maxCPUs)") // CPU 総数
print("- availCPUs: \(basicInfo.availCPUs)") // 利用可能 CPU 数
print("- memorySize: \(basicInfo.memorySize)")
print("- cpuType: \(basicInfo.cpuType)")
print("- cpuSubType: \(basicInfo.cpuSubType)")
print("- cpuThreadType: \(basicInfo.cpuThreadType)")
print("- physicalCPU: \(basicInfo.physicalCPU)")
print("- physicalCPUMax: \(basicInfo.physicalCPUMax)")
print("- logicalCPU: \(basicInfo.logicalCPU)")
print("- logicalCPUMax: \(basicInfo.logicalCPUMax)")
print("- maxMem: \(basicInfo.maxMem)") // byte size
- maxCPUs: 4 - availCPUs: 4 - memorySize: 2147483648 - cpuType: 7 - cpuSubType: 8 - cpuThreadType: 1 - physicalCPU: 2 - physicalCPUMax: 2 - logicalCPU: 4 - logicalCPUMax: 4 - maxMem: 8589934592
プロセッサ（コア）
import Mach_Swift
// host_processor_info() 相当
let array = Mach.Host.Processor.cpuLoadInfoArray()
for i in 0..<array.count {
let cpu = array[i]
print("- Core No.\(i)")
print(" - userTick: \(cpu.userTick)")
print(" - systemTick: \(cpu.systemTick)")
print(" - idleTick: \(cpu.idleTick)")
print(" - niceTick: \(cpu.niceTick)")
print("")
}
- Core No.0
- userTick: 257206
- systemTick: 186605
- idleTick: 1036690
- niceTick: 0
- Core No.1
- userTick: 144763
- systemTick: 87848
- idleTick: 1247622
- niceTick: 0
- Core No.2
- userTick: 251769
- systemTick: 155100
- idleTick: 1073364
- niceTick: 0
- Core No.3
- userTick: 131732
- systemTick: 73700
- idleTick: 1274800
- niceTick: 0
タスク(アプリ、プロセス）
基本情報
import Mach_Swift
// task_info() 相当
let basicInfo = Mach.Task.Info.basicInfo()
print("- virtualSize: \(basicInfo.virtualSize)") // 仮想メモリサイズ (byte)
print("- residentSize: \(basicInfo.residentSize)") // 実メモリサイズ（byte)
print("- residentSizeMax: \(basicInfo.residentSizeMax)") // 実メモリ最大サイズ（byte)
print("- userTime: \(basicInfo.userTime)") // ユーザ時間
print("- systemTime: \(basicInfo.systemTime)") // システム時間
print("- policy: \(basicInfo.policy)")
print("- suspendCount: \(basicInfo.suspendCount)")
- virtualSize: 5425922048 - residentSize: 78155776 - residentSizeMax: 78155776 - userTime: 0.000426 - systemTime: 0.003031 - policy: 1 - suspendCount: 0
スレッド基本情報
import Mach_Swift
// task_threads() 相当
let array = Mach.Task.Thread.basicInfoArray()
for i in 0..<array.count {
let thread = array[i]
print("- Thread No.\(i)")
print(String.init(format:" - userTime: %.2f", thread.userTime))
print(String.init(format:" - systemTime: %.2f", thread.systemTime))
print(" - cpuUsage: \(thread.cpuUsage)")
print(" - policy: \(thread.policy)")
print(" - runState: \(thread.runState)")
print(" - flags: \(thread.flags)")
print(" - suspendCount: \(thread.suspendCount)")
print(" - sleepTime: \(thread.sleepTime)")
print(String.init(format:" - sleepTime: %.2f", thread.sleepTime))
print("")
}
- Thread No.0
- userTime: 0.24
- systemTime: 0.93
- cpuUsage: 626
- policy: 1
- runState: 1
- flags: Flag(rawValue: 0)
- suspendCount: 0
- sleepTime: 0.0
- sleepTime: 0.00
- Thread No.1
- userTime: 0.01
- systemTime: 0.01
- cpuUsage: 23
- policy: 1
- runState: 3
- flags: Flag(rawValue: 1)
- suspendCount: 0
- sleepTime: 0.0
- sleepTime: 0.00
- Thread No.2
- userTime: 0.00
- systemTime: 0.00
- cpuUsage: 6
- policy: 1
- runState: 3
- flags: Flag(rawValue: 1)
- suspendCount: 0
- sleepTime: 0.0
- sleepTime: 0.00
- Thread No.3
- userTime: 0.00
- systemTime: 0.00
- cpuUsage: 0
- policy: 1
- runState: 3
- flags: Flag(rawValue: 1)
- suspendCount: 0
- sleepTime: 0.0
- sleepTime: 0.00
- Thread No.4
- userTime: 0.00
- systemTime: 0.00
- cpuUsage: 4
- policy: 1
- runState: 3
- flags: Flag(rawValue: 1)
- suspendCount: 0
- sleepTime: 0.0
- sleepTime: 0.00
- Thread No.5
- userTime: 0.00
- systemTime: 0.01
- cpuUsage: 12
- policy: 1
- runState: 3
- flags: Flag(rawValue: 1)
- suspendCount: 0
- sleepTime: 0.0
- sleepTime: 0.00
