improve build times
Generated on 8/14/2024
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To improve build times, Apple introduced several enhancements at WWDC 2024, particularly focusing on explicitly built modules. Here are some key points:
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Explicitly Built Modules: This feature allows the build system to be fully aware of the module graph, enabling more efficient scheduling and parallelism. It avoids filling execution lanes with tasks that are not ready to run, thus optimizing the use of available resources. This results in more reliable builds with precise dependencies and deterministic build graphs. Demystify explicitly built modules.
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Xcode 16 Enhancements: Xcode 16 introduces explicit modules for C and Objective-C by default, and they can be enabled for Swift. This change improves parallelism, diagnostics, and debugging speed. The build process is broken down into distinct phases, making it easier to identify where time is being spent and optimize accordingly. What’s new in Xcode 16.
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Swift Build Improvements: The Swift compiler now handles module dependencies more efficiently, reducing the need for sequential builds and improving parallelism. This change helps in minimizing build times and improving the overall build process. What’s new in Swift.
These improvements collectively contribute to faster and more efficient build processes, making development smoother and more productive.
What’s new in Xcode 16
Discover the latest productivity and performance improvements in Xcode 16. Learn about enhancements to code completion, diagnostics, and Xcode Previews. Find out more about updates in builds and explore improvements in debugging and Instruments.
Deploy machine learning and AI models on-device with Core ML
Learn new ways to optimize speed and memory performance when you convert and run machine learning and AI models through Core ML. We’ll cover new options for model representations, performance insights, execution, and model stitching which can be used together to create compelling and private on-device experiences.
What’s new in Swift
Join us for an update on Swift. We’ll briefly go through a history of Swift over the past decade, and show you how the community has grown through workgroups, expanded the package ecosystem, and increased platform support. We’ll introduce you to a new language mode that achieves data-race safety by default, and a language subset that lets you run Swift on highly constrained systems. We’ll also explore some language updates including noncopyable types, typed throws, and improved C++ interoperability.
Demystify explicitly built modules
Explore how builds are changing in Xcode 16 with explicitly built modules. Discover how modules are used to build your code, how explicitly built modules improve transparency in compilation tasks, and how you can optimize your build by sharing modules across targets.