Mercurial > hg
view rust/hg-cpython/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 | 47557ea79fc7 |
children | c7c6c11fe1e4 |
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[package] name = "hg-cpython" version = "0.1.0" authors = ["Georges Racinet <gracinet@anybox.fr>"] edition = "2018" [lib] name='rusthg' crate-type = ["cdylib"] [features] default = ["python27"] dirstate-tree = ["hg-core/dirstate-tree"] # Features to build an extension module: python27 = ["cpython/python27-sys", "cpython/extension-module-2-7"] python3 = ["cpython/python3-sys", "cpython/extension-module"] # Enable one of these features to build a test executable linked to libpython: # e.g. cargo test --no-default-features --features python27-bin python27-bin = ["cpython/python27-sys"] python3-bin = ["cpython/python3-sys"] [dependencies] crossbeam-channel = "0.4" hg-core = { path = "../hg-core"} libc = '*' log = "0.4.8" env_logger = "0.7.1" [dependencies.cpython] version = "0.4.1" default-features = false