Iai-callgrind has been renamed as Gungraun.

Also it's aimed more at benchmarking than profiling, so move it to that
section.

Author: nnethercote

src/benchmarking.md

@@ -24,6 +24,8 @@ metrics used.
 - [Criterion] and [Divan] are more sophisticated alternatives.
 - [Hyperfine] is an excellent general-purpose benchmarking tool.
 - [Bencher] can do continuous benchmarking on CI, including GitHub CI.
+- [Gungraun] provides `cargo bench` integration with high-precision
+  measurements.
 - Custom benchmarking harnesses are also possible. For example, [rustc-perf] is
   the harness used to benchmark the Rust compiler.
 
@@ -32,6 +34,7 @@ metrics used.
 [Divan]: https://github.com/nvzqz/divan
 [Hyperfine]: https://github.com/sharkdp/hyperfine
 [Bencher]: https://github.com/bencherdev/bencher
+[Gungraun]: https://github.com/gungraun/gungraun
 [rustc-perf]: https://github.com/rust-lang/rustc-perf/
 
 When it comes to metrics, there are many choices, and the right one(s) will

src/profiling.md

@@ -31,9 +31,6 @@ used successfully on Rust programs.
   Unixes. [dhat-rs] is an experimental alternative that is a little less
   powerful and requires minor changes to your Rust program, but works on all
   platforms.
-- [Iai-Callgrind] provides `cargo bench` integration for the [Valgrind]-based
-  profilers: Cachegrind, Callgrind,
-  DHAT, and others. It works on Linux and some other Unixes.
 - [heaptrack] and [bytehound] are heap profiling tools. They work on Linux.
 - [`counts`] supports ad hoc profiling, which combines the use of `eprintln!`
   statement with frequency-based post-processing, which is good for getting
@@ -51,7 +48,6 @@ used successfully on Rust programs.
 [flamegraph]: https://github.com/flamegraph-rs/flamegraph
 [Cachegrind]: https://www.valgrind.org/docs/manual/cg-manual.html
 [Callgrind]: https://www.valgrind.org/docs/manual/cl-manual.html
-[Iai-Callgrind]: https://github.com/iai-callgrind/iai-callgrind
 [DHAT]: https://www.valgrind.org/docs/manual/dh-manual.html
 [dhat-rs]: https://github.com/nnethercote/dhat-rs/
 [Valgrind]: https://valgrind.org/