ByteDance Terminal Technology
May 9, 2022 · Mobile Development
Optimizing Swift Debugging Performance with a Custom LLDB Toolchain at ByteDance
This article explains how ByteDance's DanceCC team improved debugging speed for large Swift iOS projects by customizing the LLDB toolchain, disabling costly Swift type‑resolution features, fixing static‑framework loading, optimizing external module searches, and introducing shared symbol caches, achieving up to ten‑fold reductions in variable‑view and expression‑evaluation times.
Compiler ToolchainDebuggingLLDB
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