Как рассчитать использование процессора приложения в ios, используя последнюю версию Swift? На данный момент я использую ⇐ IOS

[Anonymous]

В настоящее время я использую этот код:
public func cpuUsage(_ cpuModel:CpuIosModel?) -> Float {
guard let cpuModel = cpuModel else {

Код: Выделить всё

        print("cpuUsage is empty")
return -1
}

var kr: kern_return_t
var task_info_count: mach_msg_type_number_t

task_info_count = mach_msg_type_number_t(TASK_INFO_MAX)
var tinfo = [integer_t](repeating: 0, count: Int(task_info_count))

kr = task_info(mach_task_self_, task_flavor_t(TASK_BASIC_INFO), &tinfo, &task_info_count)
if kr != KERN_SUCCESS {
return -1
}

var thread_list: thread_act_array_t? = UnsafeMutablePointer(mutating: [thread_act_t]())
var thread_count: mach_msg_type_number_t = 0
defer {
if let thread_list = thread_list {
vm_deallocate(mach_task_self_, vm_address_t(UnsafePointer(thread_list).pointee), vm_size_t(thread_count))
}
}
kr = task_threads(mach_task_self_, &thread_list, &thread_count)

if kr != KERN_SUCCESS {

return -1
}

var tot_cpu: Float = 0
var usr_space_time: Int = 0      //time in ms
var system_space_time:Int = 0    //time in ms
var thread_sleep_time: Int = 0   // time in sec
var counter:Int = 0

if let thread_list = thread_list {

for j in 0 ..< Int(thread_count) {
var thread_info_count = mach_msg_type_number_t(THREAD_INFO_MAX)
var thinfo = [integer_t](repeating: 0, count: Int(thread_info_count))
kr = thread_info(thread_list[j], thread_flavor_t(THREAD_BASIC_INFO),
&thinfo, &thread_info_count)

let threadBasicInfo = convertThreadInfoToThreadBasicInfo(thinfo)

if threadBasicInfo.flags != TH_FLAGS_IDLE {
tot_cpu += (Float(threadBasicInfo.cpu_usage) / Float(TH_USAGE_SCALE)) * 100.0
usr_space_time += Int(threadBasicInfo.user_time.microseconds/1000)
system_space_time += Int(threadBasicInfo.system_time.microseconds/1000)
thread_sleep_time += Int(threadBasicInfo.sleep_time)
counter = counter + 1
}

} // for each thread

if counter != 0 {
//setCpuData(tot_cpu,usr_space_time,system_space_time)
setCpuData(tot_cpu: tot_cpu, usr_space_time: usr_space_time, system_space_time: system_space_time, thread_sleep_time: thread_sleep_time,cpuModel: cpuModel)
print(usr_space_time)
return -1
}
}
return tot_cpu
}

fileprivate func convertThreadInfoToThreadBasicInfo(_ threadInfo: [integer_t]) -> thread_basic_info {
var result = thread_basic_info()
result.user_time = time_value_t(seconds: threadInfo[0], microseconds: threadInfo[1])
result.system_time = time_value_t(seconds: threadInfo[2], microseconds: threadInfo[3])
result.cpu_usage = threadInfo[4]
result.policy = threadInfo[5]
result.run_state = threadInfo[6]
result.flags = threadInfo[7]
result.suspend_count = threadInfo[8]
result.sleep_time = threadInfo[9]
return result
}

Но это всегда дает tot_cpu значение 0. Пожалуйста, помогите, если у вас есть рабочий код. Также я получил этот фрагмент кода из Интернета. Может кто-нибудь объяснить, почему threadInfo[4] в функции ConvertThreadInfoToThreadBasicInfo() хранит значение использования процессора. Это предопределенная вещь?

Подробнее здесь: https://stackoverflow.com/questions/634 ... on-i-am-on