> Rust applications are sometimes (often?) slower than comparable C applications Could you cite some examples? There are plenty of counter-examples - ripgrep

> Rust applications are sometimes (often?) slower than comparable C applications Could you cite some examples? There are plenty of counter-examples - ripgrep is 5-10x faster than grep (https://github.com/BurntSushi/ripgrep/blob/962d47e6a1208cf2187cd34c2a7f6cf32e2a4903/benchsuite/runs/2022-12-16-archlinux-duff/summary https://github.com/BurntSushi/ripgrep/blob/962d47e6a1208cf21...). There's a reason ripgrep is embedded within VS Code to power search. - Memory-safe implementations of PNG (png, zune-png, wuffs) now dramatically outperform memory-unsafe ones (libpng, spng, stb_image) when decoding images. (https://www.reddit.com/r/rust/comments/1ha7uyi/memorysafe_png_decoders_now_vastly_outperform_c/ https://www.reddit.com/r/rust/comments/1ha7uyi/memorysafe_pn...) - The Rust implementation of GNU Coreutils compares favourably in performance. For example, uutils/sort outperforms coreutils/sort by 6x while working on every mainstream OS - Linux, FreeBSD, NetBSD, OpenBSD, Illumos, Redox, Android, macOS, and Windows.(https://lwn.net/Articles/1007907/ https://lwn.net/Articles/1007907/) - Android rewrote their IPC code (Binder) from C to Rust. The Rust version is within +- 1-2% of the C version (https://www.phoronix.com/news/Google-Linux-Binder-In-Rust https://www.phoronix.com/news/Google-Linux-Binder-In-Rust). - rustls outperforms OpenSSL and BoringSSL (https://www.memorysafety.org/blog/rustls-performance-outperforms/ https://www.memorysafety.org/blog/rustls-performance-outperf...) - zlib-rs is the fastest implementation of zlib (https://www.phoronix.com/news/Zlib-rs-0.4.2 https://www.phoronix.com/news/Zlib-rs-0.4.2) - Advent of Code - The one C example I saw executed the first 10 days of 2024 in 36ms (https://www.reddit.com/r/adventofcode/comments/1hbcyhz/comment/m1fapgz/ https://www.reddit.com/r/adventofcode/comments/1hbcyhz/comme...), while my idiomatic Rust solutions (https://github.com/nindalf/advent https://github.com/nindalf/advent) took 10.1ms. I'm not even that good, there are Rust solutions 10x faster than mine - https://github.com/maneatingape/advent-of-code-rust https://github.com/maneatingape/advent-of-code-rust. - I don't consider the benchmarks game a worthwhile comparison because they're only writing assembly, but Rust and C are comparable in speed (https://benchmarksgame-team.pages.debian.net/benchmarksgame/fastest/rust-gcc.html https://benchmarksgame-team.pages.debian.net/benchmarksgame/...) So yes, I'm surprised by your claim of C programs "often" outperforming comparable Rust programs, but I'd be interested to know if even the "sometimes" is true. Please share if you've found any. The other claims are questionable as well, but this one was the most easily disproven.