From d4c3500ec6dace9a88f3e56c3495b34db6aa65c5 Mon Sep 17 00:00:00 2001 From: Steve Klabnik Date: Wed, 30 Jul 2014 19:14:06 -0400 Subject: [PATCH] Add comment about speed in FAQ. Fixes #11174. --- src/doc/complement-lang-faq.md | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/doc/complement-lang-faq.md b/src/doc/complement-lang-faq.md index ce037251e46b4..36ed32a4d7e96 100644 --- a/src/doc/complement-lang-faq.md +++ b/src/doc/complement-lang-faq.md @@ -151,4 +151,15 @@ debugging linking in the compiler you might set `RUST_LOG=rustc::metadata::creader,rustc::util::filesearch,rustc::back::rpath` For a full description see [the logging crate][1]. +## How fast is Rust? + +As always, this question is difficult to answer. There's still a lot of work to +do on speed, and depending on what you're benchmarking, Rust has variable +performance. + +That said, it is an explicit goal of Rust to be as fast as C++ for most things. +Language decisions are made with performance in mind, and we want Rust to be as +fast as possible. Given that Rust is built on top of LLVM, any performance +improvements in it also help us be faster. + [1]:log/index.html