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Performance Comparison of Roc and C in DEFLATE Compression

A performance analysis of Roc's DEFLATE compression library shows it is slower than C's libdeflate on average, but can outperform it in specific cases. The study highlights Roc's memory safety features and the potential for further optimizations.

A recent performance analysis compared Roc's DEFLATE compression library to C's libdeflate. While roc-deflate was found to be slower on average, it achieved better performance in certain scenarios. The analysis underscores Roc's advantages in memory safety and the potential for future optimizations, with an upcoming release anticipated after years of development.

Key facts

  • Lean 4's DEFLATE library outperformed Rust's package in compression speed and output size.
  • Roc's DEFLATE library is currently slower than C's libdeflate by 8.9% on average.
  • Roc can outperform libdeflate on specific inputs despite an overall slower performance.
  • Roc offers memory safety and automatic reference counting, affecting performance.
  • The Roc 0.1.0 release is expected soon after eight years of development.
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How close can pure functional programming get to C?

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Performance Comparison of Roc and C in DEFLATE Compression