Mercurial > hg
view rust/rhg/Cargo.toml @ 46775:c94fa884240b
rust: Preallocate the returned `Vec` in `utils::files::relativize_path`
Profiling `rhg files > /dev/null` on an old snapshot of mozilla-central
(with `perf` and the Firefox Profiler:
https://github.com/firefox-devtools/profiler/blob/main/docs-user/guide-perf-profiling.md)
showed non-trivial time spend in this function and in `realloc`.
This change makes the wall-clock time for that process on my machine
go from ~190 ms to ~150 ms.
Differential Revision: https://phab.mercurial-scm.org/D10199
author | Simon Sapin <simon.sapin@octobus.net> |
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date | Sat, 13 Mar 2021 08:59:03 +0100 |
parents | 1bac7764ceef |
children | ebdef6283798 |
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[package] name = "rhg" version = "0.1.0" authors = [ "Antoine Cezar <antoine.cezar@octobus.net>", "Raphaël Gomès <raphael.gomes@octobus.net>", ] edition = "2018" [dependencies] hg-core = { path = "../hg-core"} chrono = "0.4.19" clap = "2.33.1" derive_more = "0.99" lazy_static = "1.4.0" log = "0.4.11" micro-timer = "0.3.1" regex = "1.3.9" env_logger = "0.7.1" format-bytes = "0.2.1" users = "0.11.0"