帮我查一下最新的关于启动优化的内容

Asked on 04/23/2025

1 search

Tailscan

This post is brought to you by Tailscan, the best devtool for Tailwind CSS.

Want to sponsor? We'd love to chat →

在WWDC 2024中，关于启动优化的内容主要在Xcode 16的新功能中进行了介绍。Xcode 16引入了一些工具和技术来帮助开发者优化应用的启动性能。

  1. 慢启动诊断：Xcode 16的组织器中新增了一个诊断日志类别，用于应用启动。如果你的应用在用户设备上启动缓慢，Xcode会显示最慢的代码路径签名，以帮助你优先修复对用户影响最大的性能问题。What’s new in Xcode 16 (09:10)

  2. 使用Instruments进行性能分析：Instruments工具可以帮助诊断启动性能问题。通过时间分析器（Time Profiler）仪器，你可以可视化代码中的CPU使用情况，并测量运行时间。Flame graph（火焰图）是一个新的高层次概览工具，可以帮助快速识别性能瓶颈。What’s new in Xcode 16 (18:42)

  3. 并行化任务：在分析启动性能时，发现某些任务在主线程上串行执行可能导致启动缓慢。通过使用任务组将这些任务并行化，并将其移至后台线程，可以显著提高启动速度。What’s new in Xcode 16 (20:19)

这些工具和技术可以帮助开发者识别和解决启动性能问题，从而提升用户体验。

Provide feedback
Discover media performance metrics in AVFoundation

Discover media performance metrics in AVFoundation

Discover how you can monitor, analyze, and improve user experience with the new media performance APIs. Explore how to monitor AVPlayer performance for HLS assets using different AVMetricEvents, and learn how to use these metrics to understand and triage player performance issues.

Support semantic search with Core Spotlight

Support semantic search with Core Spotlight

Learn how to provide semantic search results in your app using Core Spotlight. Understand how to make your app’s content available in the user’s private, on-device index so people can search for items using natural language. We’ll also share how to optimize your app’s performance by scheduling indexing activities. To get the most out of this session, we recommend first checking out Core Spotlight documentation on the Apple Developer website.

What’s new in AppKit

What’s new in AppKit

Discover the latest advances in Mac app development. Get an overview of the new features in macOS Sequoia, and how to adopt them in your app. Explore new ways to integrate your existing code with SwiftUI. Learn about the improvements made to numerous AppKit controls, like toolbars, menus, text input, and more.