Rust 1.85 vs. C++ 23: Compilation Time for 500k LOC Projects

📰 Dev.to · ANKUSH CHOUDHARY JOHAL

Compare Rust 1.85 and C++23 compilation times for large projects and understand the implications for development workflows

intermediate Published 29 Apr 2026
Action Steps
  1. Build a 500k LOC project using Rust 1.85 to measure compilation time
  2. Build the same project using C++23 to compare compilation times
  3. Configure the build process for both languages to optimize compilation time
  4. Test and analyze the compilation time differences between Rust and C++
  5. Apply the findings to inform language choice for future large-scale projects
Who Needs to Know This

Software engineers and developers working on large-scale projects can benefit from understanding the compilation time differences between Rust and C++ to optimize their development workflows and choose the best language for their needs

Key Insight

💡 Rust 1.85 takes 4x longer to compile than C++23 for large projects, impacting development workflow and language choice

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🚀 Rust 1.85 vs C++23: Which compiles faster for 500k LOC projects? 🤔

Key Takeaways

Compare Rust 1.85 and C++23 compilation times for large projects and understand the implications for development workflows

Full Article

For a 500,000-line production codebase, Rust 1.85 takes 4x longer to compile than C++23 when using...
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