Async Traits, Hidden Allocs: Profiling Rust Futures

📰 Dev.to · speed engineer

Learn how to profile Rust futures and identify hidden allocations causing performance regressions

advanced Published 21 Apr 2026
Action Steps
  1. Run a benchmarking test using criterion to measure performance before and after refactoring
  2. Use a memory profiler like valgrind to identify hidden allocations
  3. Configure the Rust compiler to emit detailed allocation statistics
  4. Test the async trait refactor with different input sizes to isolate the performance bottleneck
  5. Apply optimizations to reduce allocations and improve performance
Who Needs to Know This

Software engineers and performance optimization specialists can benefit from this article to improve the efficiency of their Rust applications

Key Insight

💡 Async trait refactors can introduce hidden allocations, leading to significant performance regressions

Share This
💡 Identify hidden allocations in Rust futures and optimize performance by up to 89%
Read full article → ← Back to Reads