【iOS開發】一個簡單、易用、強大的 iOS APP 冷啟動耗時分析工具
AMKLaunchTimeProfiler
—— 簡單、易用、強大的 iOS APP 冷啟動耗時分析工具
注：以下內容，可查閱 GitHub 中 AMKLaunchTimeProfiler 的 Readme.md 以獲取及時更新，和更好的閱讀體驗~~
1、Features
- 零成本使用： 通過 CocoaPods 一行程式碼接入，即可實現 APP 冷啟動耗時統計，包括
pre-main、main、首屏渲染三個階段的耗時，及總耗時 - 視覺化檢視： 內建日誌檢視頁面，並自動高亮高耗時方法，各種資訊一目瞭然
- 源資料匯出： 可以方便的通過郵件、AirDrop 等方式 匯出全部資料，具體包括
- 日誌列表的文字資料，方便在電腦上檢視
- 日誌的JSON資料，方便基於日誌的執行時間、呼叫方法、執行耗時 等資訊 做自定義分析
- 多次有效資料的平均數 資料
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| ------------------------------------------------------------ | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------------------------------------------------------ |
| 視覺化檢視 | 操作選項 | 源資料匯出 | 通過郵件匯出 | 通過其他方式匯出 |
2、Installation
AMKLaunchTimeProfiler 可通過CocoaPods完成引入，僅需現在工程的Podfile檔案中 新增如下程式碼
pod 'AMKLaunchTimeProfiler'
然後在終端在Podfile檔案所在路徑下執行 pod install命令即可完成原始碼下載與引入。
詳見：http://github.com/AndyM129/AMKLaunchTimeProfiler
3、Usage
3.1、檢視相關日誌
內建日誌檢視頁面，並自動高亮高耗時方法，各種資訊一目瞭然，具體可通過如下方式開啟：
3.1.1、使用手勢
通過 AMKLaunchTimeProfiler.debugEnable = YES; 啟用除錯模式（預設不啟用），即可在 任意介面，通過「雙指從右向左輕掃」的手勢開啟
3.1.2、使用編碼
通過 [AMKLaunchTimeProfilerLogsViewController.new presentingWithAnimated:YES completion:nil]; 使用程式碼開啟
每一次啟動，都會新建立 並儲存一個 AMKLaunchTimeProfiler 例項，相關日誌也都會存在該例項中，並實時持久化到本地，舉例如下：
```
AMKLaunchTimeProfiler id: 5c39904610203e20d26a22969df37bf9 AMKLaunchTimeProfiler version: 1.0.0 Bundle id: io.github.andym129.amk-launch-time-profiler Bundle short Version: 1.0 Bundle version: 1.0 Client Version: (null) Device Version: iPhone 11 Pro Max with iOS 15.5 Device Name: Andy's iPhone 11 Pro Max
process-start time: 2022-06-22 16:13:00
total time consuming: 2.121 s
pre-main time consuming: 1.716 s (80.88%)
main time consuming: 0.345 s (16.24%)
first screen time consuming: 0.061 s (2.87%)
⏱ +1.716 s ~Δ 1716 ms >> INTERNAL: process-start time: 2022-06-22 16:13:00 ⏱ +1.716 s ~Δ 0 ms >> INTERNAL: main time: 2022-06-22 16:13:02 ⏱ +2.023 s ~Δ 308 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:]_block_invoke Line 18: 開始... ⏱ +2.026 s ~Δ 2 ms >> -[AMKRootViewController viewDidLoad]_block_invoke Line 40: 開始... ⏱ +2.044 s ~Δ 18 ms >> -[AMKRootViewController viewDidLoad]_block_invoke_2 Line 45: 結束 ⏱ +2.060 s ~Δ 16 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:] Line 25: hello ⏱ +2.060 s ~Δ 0 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:] Line 26: world ⏱ +2.060 s ~Δ 0 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:]_block_invoke_4 Line 36: 結束 ⏱ +2.061 s ~Δ 1 ms >> INTERNAL: did finish launching time: 2022-06-22 16:13:02 ⏱ +2.063 s ~Δ 3 ms >> -[AMKHomeViewController viewDidLoad]_block_invoke Line 38: 開始... ⏱ +2.064 s ~Δ 1 ms >> -[AMKHomeViewController viewDidLoad]_block_invoke_2 Line 42: 結束 ⏱ +2.121 s ~Δ 57 ms >> -[AMKHomeViewController viewDidAppear:]_block_invoke Line 51: 開始... ⏱ +2.121 s ~Δ 0 ms >> -[AMKHomeViewController viewDidAppear:]_block_invoke_2 Line 52: 結束 ⏱ +2.121 s ~Δ 0 ms >> -[AMKRootViewController viewDidAppear:]_block_invoke Line 54: 開始... ⏱ +2.121 s ~Δ 0 ms >> -[AMKRootViewController viewDidAppear:]_block_invoke_2 Line 55: 結束 ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: first screen time: 2022-06-22 16:13:02 ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: ---------------------------------------------------------------------- ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: total time consuming: 2.121 s ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: pre-main time consuming: 1.716 s (80.88%) ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: main time consuming: 0.345 s (16.24%) ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: first screen time consuming: 0.061 s (2.87%) ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: ---------------------------------------------------------------------- ⏱ +11.081 s ~Δ 8960 ms >> -[AMKViewController viewDidLoad]_block_invoke Line 38: 開始... ⏱ +11.082 s ~Δ 0 ms >> -[AMKViewController viewDidLoad]_block_invoke_2 Line 41: 結束 ⏱ +11.099 s ~Δ 17 ms >> -[AMKViewController viewDidAppear:]_block_invoke Line 50: 開始... ⏱ +11.099 s ~Δ 0 ms >> -[AMKViewController viewDidAppear:]_block_invoke_2 Line 51: 結束 ```
3.2、匯出日誌
在日誌檢視頁面，點選右上角的“···”，點擊發送，即可選擇“郵件”或“其他”方式匯出，具體包括：
3.2.1、log 檔案
```
AMKLaunchTimeProfiler id: 77949e4c840246c4ddedce31d8b9b54e AMKLaunchTimeProfiler version: 1.0.0 Bundle id: io.github.andym129.amk-launch-time-profiler Bundle short Version: 1.0 Bundle version: 1.0 Client Version: (null) Device Version: iPhone 11 Pro Max with iOS 15.5 Device Name: Andy's iPhone 11 Pro Max
process-start time: 2022-06-22 16:04:53
total time consuming: 3.081 s
pre-main time consuming: 2.575 s (83.59%)
main time consuming: 0.000 s (0.00%)
first screen time consuming: 0.000 s (0.00%)
⏱ +2.575 s ~Δ 2575 ms >> INTERNAL: process-start time: 2022-06-22 16:04:53 ⏱ +2.576 s ~Δ 0 ms >> INTERNAL: main time: 2022-06-22 16:04:56 ⏱ +3.081 s ~Δ 506 ms >> INTERNAL: first screen time: 2022-06-22 16:04:56 ⏱ +3.081 s ~Δ 0 ms >> INTERNAL: ---------------------------------------------------------------------- ⏱ +3.081 s ~Δ 0 ms >> INTERNAL: total time consuming: 3.081 s ⏱ +3.081 s ~Δ 0 ms >> INTERNAL: pre-main time consuming: 2.575 s (83.59%) ⏱ +3.081 s ~Δ 0 ms >> INTERNAL: main time consuming: 0.000 s (0.00%) ⏱ +3.081 s ~Δ 0 ms >> INTERNAL: first screen time consuming: 0.000 s (0.00%) ⏱ +3.081 s ~Δ 0 ms >> INTERNAL: ----------------------------------------------------------------------
====================================================================== AMKLaunchTimeProfiler id: 5c39904610203e20d26a22969df37bf9 AMKLaunchTimeProfiler version: 1.0.0 Bundle id: io.github.andym129.amk-launch-time-profiler Bundle short Version: 1.0 Bundle version: 1.0 Client Version: (null) Device Version: iPhone 11 Pro Max with iOS 15.5 Device Name: Andy's iPhone 11 Pro Max
process-start time: 2022-06-22 16:13:00
total time consuming: 2.121 s
pre-main time consuming: 1.716 s (80.88%)
main time consuming: 0.345 s (16.24%)
first screen time consuming: 0.061 s (2.87%)
⏱ +1.716 s ~Δ 1716 ms >> INTERNAL: process-start time: 2022-06-22 16:13:00 ⏱ +1.716 s ~Δ 0 ms >> INTERNAL: main time: 2022-06-22 16:13:02 ⏱ +2.023 s ~Δ 308 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:]_block_invoke Line 18: 開始... ⏱ +2.026 s ~Δ 2 ms >> -[AMKRootViewController viewDidLoad]_block_invoke Line 40: 開始... ⏱ +2.044 s ~Δ 18 ms >> -[AMKRootViewController viewDidLoad]_block_invoke_2 Line 45: 結束 ⏱ +2.060 s ~Δ 16 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:] Line 25: hello ⏱ +2.060 s ~Δ 0 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:] Line 26: world ⏱ +2.060 s ~Δ 0 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:]_block_invoke_4 Line 36: 結束 ⏱ +2.061 s ~Δ 1 ms >> INTERNAL: did finish launching time: 2022-06-22 16:13:02 ⏱ +2.063 s ~Δ 3 ms >> -[AMKHomeViewController viewDidLoad]_block_invoke Line 38: 開始... ⏱ +2.064 s ~Δ 1 ms >> -[AMKHomeViewController viewDidLoad]_block_invoke_2 Line 42: 結束 ⏱ +2.121 s ~Δ 57 ms >> -[AMKHomeViewController viewDidAppear:]_block_invoke Line 51: 開始... ⏱ +2.121 s ~Δ 0 ms >> -[AMKHomeViewController viewDidAppear:]_block_invoke_2 Line 52: 結束 ⏱ +2.121 s ~Δ 0 ms >> -[AMKRootViewController viewDidAppear:]_block_invoke Line 54: 開始... ⏱ +2.121 s ~Δ 0 ms >> -[AMKRootViewController viewDidAppear:]_block_invoke_2 Line 55: 結束 ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: first screen time: 2022-06-22 16:13:02 ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: ---------------------------------------------------------------------- ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: total time consuming: 2.121 s ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: pre-main time consuming: 1.716 s (80.88%) ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: main time consuming: 0.345 s (16.24%) ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: first screen time consuming: 0.061 s (2.87%) ⏱ +2.121 s ~Δ 0 ms >> INTERNAL: ---------------------------------------------------------------------- ⏱ +11.081 s ~Δ 8960 ms >> -[AMKViewController viewDidLoad]_block_invoke Line 38: 開始... ⏱ +11.082 s ~Δ 0 ms >> -[AMKViewController viewDidLoad]_block_invoke_2 Line 41: 結束 ⏱ +11.099 s ~Δ 17 ms >> -[AMKViewController viewDidAppear:]_block_invoke Line 50: 開始... ⏱ +11.099 s ~Δ 0 ms >> -[AMKViewController viewDidAppear:]_block_invoke_2 Line 51: 結束
====================================================================== AMKLaunchTimeProfiler id: 554b38e7f43a36526d5b74484930d2ad AMKLaunchTimeProfiler version: 1.0.0 Bundle id: io.github.andym129.amk-launch-time-profiler Bundle short Version: 1.0 Bundle version: 1.0 Client Version: (null) Device Version: iPhone 11 Pro Max with iOS 15.5 Device Name: Andy's iPhone 11 Pro Max
process-start time: 2022-06-22 16:26:05
total time consuming: 2.896 s
pre-main time consuming: 2.263 s (78.14%)
main time consuming: 0.563 s (19.43%)
first screen time consuming: 0.070 s (2.43%)
⏱ +2.263 s ~Δ 2263 ms >> INTERNAL: process-start time: 2022-06-22 16:26:05 ⏱ +2.263 s ~Δ 0 ms >> INTERNAL: main time: 2022-06-22 16:26:07 ⏱ +2.791 s ~Δ 529 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:]_block_invoke Line 18: 開始... ⏱ +2.795 s ~Δ 4 ms >> -[AMKRootViewController viewDidLoad]_block_invoke Line 40: 開始... ⏱ +2.812 s ~Δ 17 ms >> -[AMKRootViewController viewDidLoad]_block_invoke_2 Line 45: 結束 ⏱ +2.825 s ~Δ 13 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:] Line 25: hello ⏱ +2.825 s ~Δ 0 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:] Line 26: world ⏱ +2.825 s ~Δ 0 ms >> -[AMKAppDelegate application:didFinishLaunchingWithOptions:]_block_invoke_4 Line 43: 結束 ⏱ +2.825 s ~Δ 1 ms >> INTERNAL: did finish launching time: 2022-06-22 16:26:08 ⏱ +2.829 s ~Δ 3 ms >> -[AMKHomeViewController viewDidLoad]_block_invoke Line 37: 開始... ⏱ +2.829 s ~Δ 1 ms >> -[AMKHomeViewController viewDidLoad]_block_invoke_2 Line 41: 結束 ⏱ +2.896 s ~Δ 66 ms >> -[AMKHomeViewController viewDidAppear:]_block_invoke Line 50: 開始... ⏱ +2.896 s ~Δ 0 ms >> -[AMKHomeViewController viewDidAppear:]_block_invoke_2 Line 51: 結束 ⏱ +2.896 s ~Δ 0 ms >> -[AMKRootViewController viewDidAppear:]_block_invoke Line 54: 開始... ⏱ +2.896 s ~Δ 0 ms >> -[AMKRootViewController viewDidAppear:]_block_invoke_2 Line 55: 結束 ⏱ +2.896 s ~Δ 0 ms >> INTERNAL: first screen time: 2022-06-22 16:26:08 ⏱ +2.896 s ~Δ 0 ms >> INTERNAL: ---------------------------------------------------------------------- ⏱ +2.896 s ~Δ 0 ms >> INTERNAL: total time consuming: 2.896 s ⏱ +2.896 s ~Δ 0 ms >> INTERNAL: pre-main time consuming: 2.263 s (78.14%) ⏱ +2.896 s ~Δ 0 ms >> INTERNAL: main time consuming: 0.563 s (19.43%) ⏱ +2.896 s ~Δ 0 ms >> INTERNAL: first screen time consuming: 0.070 s (2.43%) ⏱ +2.896 s ~Δ 0 ms >> INTERNAL: ---------------------------------------------------------------------- ```
3.2.2、txt檔案
``` 2 次有效資料的平均數：
total time consuming: 2.508 s
pre-main time consuming: 1.989 s (79.30%)
main time consuming: 0.454 s (18.08%)
first screen time consuming: 0.066 s (2.61%) ```
3.2.3、json檔案
json
// 如下內容，已做精簡
[
{
"mainTimeConsuming" : 0,
"bundleId" : "io.github.andym129.amk-launch-time-profiler",
"didFinishLaunchingTime" : 0,
"identifier" : "77949e4c840246c4ddedce31d8b9b54e",
"mainTime" : 1655885096.369308,
"preMainTimeConsuming" : 2.5754809379577637,
"deviceVersion" : "iPhone 11 Pro Max with iOS 15.5",
"processStartTime" : 1655885093.7938271,
"totalTimeConsuming" : 3.0812058448791504,
"deviceName" : "Andy's iPhone 11 Pro Max",
"logs" : [
{
"timeDelta" : 2.5753798484802246,
"function" : "__INTERNAL__",
"line" : 0,
"timeInterval" : 2.5753798484802246,
"string" : "process-start time: 2022-06-22 16:04:53"
},
...
],
"bundleName" : "AMKLaunchTimeProfiler_Example",
"version" : "1.0.0",
"firstScreenTimeConsuming" : 0,
"bundleVersion" : "1.0",
"firstScreenTime" : 1655885096.8750329,
"bundleShortVersion" : "1.0"
},
{
"mainTimeConsuming" : 0.3446040153503418,
"bundleId" : "io.github.andym129.amk-launch-time-profiler",
"didFinishLaunchingTime" : 1655885582.4769759,
"identifier" : "5c39904610203e20d26a22969df37bf9",
"mainTime" : 1655885582.1323719,
"preMainTimeConsuming" : 1.7158448696136475,
"deviceVersion" : "iPhone 11 Pro Max with iOS 15.5",
"processStartTime" : 1655885580.416527,
"totalTimeConsuming" : 2.1213448047637939,
"deviceName" : "Andy's iPhone 11 Pro Max",
"logs" : [
{
"timeDelta" : 1.7157728672027588,
"function" : "__INTERNAL__",
"line" : 0,
"timeInterval" : 1.7157728672027588,
"string" : "process-start time: 2022-06-22 16:13:00"
},
...
],
"bundleName" : "AMKLaunchTimeProfiler_Example",
"version" : "1.0.0",
"firstScreenTimeConsuming" : 0.060895919799804688,
"bundleVersion" : "1.0",
"firstScreenTime" : 1655885582.5378718,
"bundleShortVersion" : "1.0"
},
{
"mainTimeConsuming" : 0.56263923645019531,
"bundleId" : "io.github.andym129.amk-launch-time-profiler",
"didFinishLaunchingTime" : 1655886368.1614871,
"identifier" : "554b38e7f43a36526d5b74484930d2ad",
"mainTime" : 1655886367.5988479,
"preMainTimeConsuming" : 2.2627308368682861,
"deviceVersion" : "iPhone 11 Pro Max with iOS 15.5",
"processStartTime" : 1655886365.336117,
"totalTimeConsuming" : 2.8956289291381836,
"deviceName" : "Andy's iPhone 11 Pro Max",
"logs" : [
{
"timeDelta" : 2.2626559734344482,
"function" : "__INTERNAL__",
"line" : 0,
"timeInterval" : 2.2626559734344482,
"string" : "process-start time: 2022-06-22 16:26:05"
},
...
],
"bundleName" : "AMKLaunchTimeProfiler_Example",
"version" : "1.0.0",
"firstScreenTimeConsuming" : 0.070258855819702148,
"bundleVersion" : "1.0",
"firstScreenTime" : 1655886368.231746,
"bundleShortVersion" : "1.0"
}
]
3.3、自定義日誌
對於耗時較高的方法，可以通過補充自定義日誌的方式，輔助找出具體的耗時的操作，進而通過優化 實現提速冷啟動，相關方法如下：
```objective-c /// 列印日誌
define AMKLaunchTimeProfilerLog(FORMAT, ...);
/// 列印日誌 - @"開始..."
define AMKLaunchTimeProfilerLogBegin(FORMAT, ...);
/// 列印日誌 - @"結束"
define AMKLaunchTimeProfilerLogEnd(FORMAT, ...);
/// 列印日誌 - 內部日誌
define AMKLaunchTimeProfilerInternalLog(FORMAT, ...);
/// 列印日誌 - 相同位置 只打一次
define AMKLaunchTimeProfilerOnceLog(FORMAT, ...);
/// 列印日誌 - 相同位置 只打一次 - @"開始..."
define AMKLaunchTimeProfilerOnceLogBegin(FORMAT, ...);
/// 列印日誌 - 相同位置 只打一次 - @"結束"
define AMKLaunchTimeProfilerOnceLogEnd(FORMAT, ...);
/// 完全自定義的日誌 - (void)logWithFunction:(const char _Nullable)function line:(NSInteger)line string:(NSString _Nullable)format, ...;
```
4、Author
- 郵箱：[email protected]
- 掘金：http://juejin.cn/user/2875978147966855
5、License
AMKLaunchTimeProfiler is available under the MIT license. See the LICENSE file for more info.
注：以上內容，可查閱 原文 以獲取及時更新，和更好的閱讀體驗~~