Skip to content
Cargo

num_cpus

Get the number of CPUs on a machine.

About
rust
github.com/seanmonstar/num_cpusMITSean McArthur8.2M / week625 · 97 forks · 56 contributors
Compare
Compares against 1.17.0 (latest stable)
Latest Stable1.17.0May 30, 2025
Release cadenceEvery 4 months
Last releaseMay 30, 2025
Open advisories0
Changelog quality100% curated
GitHub Releases + CHANGELOG
Release history SecurityYou're on
1.x
STABLE · RCPRE-RELEASEJulOct2023AprJulOct2024AprJulOct2025Apr

36 older or filtered releases not shown.

Upgrade guides

Breaking changes and a migration checklist for each major version
num_cpus 0.2 → 10.2.13 → 1.17.0May 30, 2025 UnknownNew3Changed4Fixed5num_cpus 0.1 → 0.20.1.0 → 0.2.13Jun 14, 2016 Unknown
VersionChannelDateChangesSecurity
1.17.0 StableMay 30, 2025Changed1Fixed11.16.0 youStableJun 29, 2023Changed21.15.0 StableDec 20, 2022Changed11.14.0 StableNov 3, 2022New1Fixed11.13.1 StableDec 20, 2021Fixed11.13.0 StableApr 15, 2020New11.12.0 StableJan 16, 2020New1Fixed11.11.1 StableNov 12, 2019Fixed11.11.0 StableOct 30, 2019No changes listed1.10.1 StableJun 10, 2019No changes listed1.10.0 StableFeb 11, 2019No changes listed1.9.0 StableDec 11, 2018No changes listed1.8.0 StableDec 29, 2017No changes listed1.7.0 StableSep 28, 2017No changes listed1.6.2 StableJun 23, 2017No changes listed1.6.1 YankedJun 22, 2017No changes listed1.6.0 StableJun 21, 2017No changes listed1.5.1 StableJun 2, 2017No changes listed1.5.0 StableMay 26, 2017No changes listed1.4.0 StableApr 26, 2017No changes listed