{"id":5933,"date":"2016-11-30T10:53:06","date_gmt":"2016-11-30T10:53:06","guid":{"rendered":"https:\/\/9series-blog.staging9.com\/?p=5933"},"modified":"2026-03-03T10:44:04","modified_gmt":"2026-03-03T10:44:04","slug":"use-xcode-instruments-to-monitor-activities-of-ios-application-developers-development-companies-in-india","status":"publish","type":"post","link":"https:\/\/www.9series.com\/blog\/use-xcode-instruments-to-monitor-activities-of-ios-application-developers-development-companies-in-india\/","title":{"rendered":"Monitor Activities of iOS Apps Using Xcode Instruments"},"content":{"rendered":"

When we are taking a shot at iOS application<\/a>, we are thinking of new features for making our app great. Apart from improving \/ enhancing our app, we ought to instrument its code also. The Instrument allows you to check your code for performance issues, memory issues, reference cycles, and other problems. With the help of these instruments, we can bug-free potential applications as best as possible.<\/p>\n

\"monitor-activities-of-ios-apps-using-xcode-instruments\"<\/a><\/p>\n

Xcode incorporates a performance tuning application named Instruments that monitor your app\u2019s network and file I\/O activity.<\/p>\n

Let\u2019s investigate it one-by-one and its usage:<\/p>\n

1. Activity Monitor<\/span><\/p>\n

Activity Monitor is an awesome utility to monitor what type of applications and services are chewing up CPU cycles, energy hogs, and other things that might slow your Mac down. Using activity monitor one can figure out why iPhone was chewing the battery when comes in sleeping mode. When Instruments comes in a sleeping mode, One can easily monitor devices and its processes.<\/p>\n

2. Allocations<\/span><\/p>\n

The Allocations instrument captures information about memory allocation for an app. You can inspect that everything is in sequence or not. If you happen to be working on Swift, all of your Swift objects will get prefixed with the application name. If you are working on Objective-C, it’s a little bit difficult to find, essentially have to know the names of the things you are looking for. If you happen to have prefixed your files you can search on that prefix and see all your objects that way, or you can seek on some naming scheme you might have used.<\/p>\n

If you click on the little arrow next to the object, it\u2019ll show you all the allocations of that object, and who is responsible for creating it. Then, if you click on the little arrow next to one of those allocations, you can see the detailed information about its retain and release count. If that number doesn\u2019t reach 0, it won\u2019t get deallocated.<\/p>\n

3. Leaks<\/span><\/p>\n

It includes Allocation and Leak templates that will help you see all the memory allocations and potential leaks that are happening.<\/p>\n

You cannot get an excessive amount of detail on the Leaks panel, but it will take snapshots for you, at specified intervals, to see if you have any memory that has been allocated yet not able to deallocate. This often happens in the case of Objective-C and using some of the C libraries where you are responsible for releasing any allocated memory. If you are working on Swift<\/a>, these leaks are less common as it takes care of some of the things you used to do with Objective-C.<\/p>\n

4. Timer Profiler<\/span><\/p>\n

At the time of running your application, sometimes you can be delayed in performing some task. If you want to examine that, the Timer Profiler instrument is very beneficial. It will be more effective, how to make your apps faster, more efficient and can be used to identify problems and verify your fixes. It is easy to improve your app’s power usage and performance.<\/p>\n

5. Energy Log<\/span><\/p>\n

It monitors factors that influence energy usage on an iOS device, including CPU activity, network activity, screen brightness, and more. Keep note that this tool doesn\u2019t supports in simulator.<\/p>\n

It gathers data from your running app and presents it in a graphical timeline.
\nIdentify the areas where usage is highest, and see if you can reduce impact in those areas.The Energy Usage instrument indicates a level from 0 to 20, indicating how much energy your app is using at any given time.<\/p>\n

6. Network Connection<\/span><\/p>\n

The Connection instrument captures information about TCP\/IP and UDP\/IP networks activating over time. Like Energy Log, this tool also doesn\u2019t support in simulator. The timeline pane displays graphs that represent the amount of network activity in the following categories:<\/p>\n