---

yaml
---
r: 126205
b: refs/heads/auto
c: 032d5c1
h: refs/heads/master
i:
  126203: d2ac440
v: v3

Author: bors

[refs]

@@ -13,7 +13,7 @@ refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0
 refs/tags/release-0.3.1: 495bae036dfe5ec6ceafd3312b4dca48741e845b
 refs/tags/release-0.4: e828ea2080499553b97dfe33b3f4d472b4562ad7
 refs/tags/release-0.5: 7e3bcfbf21278251ee936ad53e92e9b719702d73
-refs/heads/auto: 0ea44fd0aa8a8e16ca5607778da444d30de695c4
+refs/heads/auto: 032d5c1dcd95145d58fe3cce63853855578022a7
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c
 refs/tags/0.1: b19db808c2793fe2976759b85a355c3ad8c8b336

branches/auto/src/doc/complement-lang-faq.md

@@ -162,4 +162,15 @@ 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