［已解决］swift中调试代码时间占用消耗

swift中，需要找网络请求相关的代码，想要分析其时间占用情况

swift calculate elapse time

Swift type for calculating elapsed time

Measure elapsed time in swift – Stack Overflow

swift calculate spend time

swift calculate time for timers running in background – Stack Overflow

ios – How to log a method’s execution time exactly in milliseconds? – Stack Overflow

先是用了：

var totalUpdateGroupTimeInSec:NSTimeInterval = 0

let beginTime = NSDate()

//do something

                let endTime = NSDate()
                let currentElapsedTime = endTime.timeIntervalSinceDate(beginTime)
                let currentElapsedTimeFloat = Float(currentElapsedTime)
                let currentElapsedTimeStr = String(format: "%.4f", currentElapsedTimeFloat)

                self.totalUpdateGroupTimeInSec += currentElapsedTime
                let totalElapsedTimeFloat = Float(self.totalUpdateGroupTimeInSec)
                let totalElapsedTimeStr = String(format: "%.4f", totalElapsedTimeFloat)

print("update group topic item consume time: current=\(currentElapsedTimeStr), total=\(totalElapsedTimeStr)")

最后用了：

class CalculateElapsedTime: NSObject {
let uniqueId:String

var startTime:NSDate
var endTime:NSDate

    var elapsedTimeInSec:Double {
        let diffTimeInSec:Double = self.endTime.timeIntervalSinceDate(self.startTime)
        return diffTimeInSec
    }

    init(uniqueId:String = ""){
        self.uniqueId = uniqueId

        self.startTime = NSDate()
        self.endTime = self.startTime

//        start()
    }

    func start() -> NSDate {
        self.reset()

        return self.startTime
    }

    func stop() -> Double {
        self.endTime = NSDate()

        return elapsedTimeInSec
    }

    func reset(){
        self.startTime = NSDate()
        self.endTime = self.startTime
    }

}

func calcTimeStart(uniqueId:String){
gLog.debug("\(uniqueId)")

let calcTime = CalculateElapsedTime()
gCalcTime[uniqueId] = calcTime
}

func calcTimeEnd(uniqueId:String){
    if gCalcTime.keys.contains(uniqueId) {
        let calcTime = gCalcTime[uniqueId]!
        let elapsedTime = calcTime.stop()
        gLog.debug("\(uniqueId) elapsedTime=\(String(format: "%.4f", elapsedTime))")
        calcTime.reset()

}

func loginWithUserid(){

        calcTimeStart("loginWithUserid")
        getUrlRespJsonDict_async(genAuthUrl, extraParas: extraParas, respJsonDictHandler: getAcessTokenHandler)
    }

    func getAcessTokenHandler(getJsonOk:Bool, extraParas:AnyObject?, respJsonDict:JSON) {

calcTimeEnd("loginWithUserid")

}

即可。

输出：

2016-03-30 21:37:10.287 [Debug] … calcTimeStart > …

2016-03-30 21:37:14.785 [Debug]… elapsedTime=3.1823

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［已解决］swift中调试代码时间占用消耗

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