There is currently no way to run perf on rustdoc, but it would be very useful (c.f. https://github.com/rust-lang/rust/pull/73566#issuecomment-647055502, https://github.com/rust-lang/rust/issues/58849).
There is currently no way to run perf on rustdoc, but it would be very useful (c.f. rust-lang/rust#73566 (comment), rust-lang/rust#58849).