- APPLE DEVELOPER INSTRUMENTS HOW TO
- APPLE DEVELOPER INSTRUMENTS SERIES
- APPLE DEVELOPER INSTRUMENTS FREE
Typically you will choose your app's process as your Target Process, but for instance, if you're Profiling a shared extension, you would choose your extension Process, which will be separate from your app. This is similar to the Xcode Target Area where you choose the device and the process to Profile on the device. The Target Device List on the left allows you to select the device on which you wish to profile. Beside the Profiling Controls is the Target Area. This allows you to record, pause, and stop data collection. So, the top left, we have the Profiling Controls. Then, the Instrument's app shows the Instrument's library palette, which contains a complete list of available Instruments.įrom here, you can find new Instruments and drag them into the document to gather more data. So, the top right, you can add additional Instruments to this document by clicking the Add Instruments button. When you first open the Time Profiler template, you're presented with this blank document ready for Profiling. These Instruments are great tools for understanding responsiveness and your app's utilization. There are too many templates to cover in this short session, so we will focus on the Time Profiler template which contains the two Instruments I just mentioned - Time Profiler and Points of Interest, as well as others. A template provides a preconfigured collection of Instruments to help you answer a performance question, similar to how the page's birthday card template provides a document structure to help you create a birthday card. When you first open Instruments, you're presented with a list of templates similar to the templates in a pages or numbers document.
The Points of Interest instrument on the right collects data from important areas of your app that you can highlight using various APIs such as Signpost API. The Time Profiler Instrument on the left uses infrastructure provided by the operating system to collect call stacks of relevant threads at a fixed interval. Here we have a couple of my favorite Instruments. We sometimes refer to the data an Instrument collects as a treat.
APPLE DEVELOPER INSTRUMENTS SERIES
In areas where it might be hard to understand what I'm referring to, I'll refer to the application as the Instruments app.Īn Instrument collects time series trace data from infrastructure that is inserted into important parts of apps, processes, and the operating system. Why is it named that? Because it provides tools called Instruments that are used to profile errors in your application. We've already talked about the Instruments app. Now, I'll start using the word Instruments in two different ways.
APPLE DEVELOPER INSTRUMENTS FREE
You are free to choose how you start your performance analysis quest. Although Instruments is embedded within and is often used with Xcode, Instruments is a separate app which may be used independently as needed. From Xcode's product menu, choose Profile. If you have Xcode already, you already have Instruments. You can use Instruments during development, testing, and debugging. Instruments can help you profile your apps on all platforms - iOS, macOS, watchOS, tvOS - in order to better understand and optimize their behavior and performance. Instruments is a powerful performance analysis and testing tool that's part of Xcode toolset. Let's get started with a walkthrough of Instruments. In the last section, we'll talk about adding Signposts to your application to gain insight into your app's behavior. We'll figure out what kind of work and how much work your app is doing by using a tool called Time Profiler.
APPLE DEVELOPER INSTRUMENTS HOW TO
Then we'll show you how to profile your app to measure the time taken by various operations. Today we'll start out with an orientation of Instruments, its features, and a tour of its user interface.
In fact, I like to think of Xcoded Instruments as best friends, so I keep instruments in the dock beside Xcode as a reminder to proof that early and often throughout the engineering process. It is important to measure performance early and often, because regressions can be introduced anywhere in the development cycle and can have a compounded effect. This is a great session for those who are new to Instruments and are looking to better integrate Instruments into their engineering workflow. In today's session, we will share with you our favorite tool to measure performance - Instruments. It is important to remember these areas when trying to create a great user experience in your app. No matter how much I love the UI of an app, when I encounter a spinning gear, or a poor battery life, my overall experience with the app is diminished.
Responsiveness builds trust between the user and your app.
When I think about delivering a great user experience, I immediately think about performance. My name is Tibet Rooney-Rabdau and with me today are my teammates, Ben Mitchell and Anand Subramanian. Good morning, and welcome to Getting Started with Instruments.
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