pkg.soopen package index

brew / 順位 10416

libcpucycles を Homebrew, dnf, Nix, apt でインストール

libcpucycles のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

インストール

追加のインストールコマンド

macOS

Homebrew確認済み · 100%
brew install libcpucycles

local Homebrew formula metadata

Linux

Fedora dnf確認済み · 92%
sudo dnf install libcpucycles

Fedora Rawhide package metadata · libcpucycles · ソース: dl.fedoraproject.org

Nix確認済み · 92%
nix profile install nixpkgs#libcpucycles

nixpkgs package indexes · pkgs/by-name/li/libcpucycles/package.nix · ソース: api.github.com

Debian apt確認済み · 92%
sudo apt install cpucycles

Debian stable package indexes · cpucycles · ソース: deb.debian.org

概要

パッケージ概要

Microlibrary for counting CPU cycles

コマンドとエイリアス

  • cpucycles-info
  • cpucycles-open

履歴

プロジェクトの歴史と使われ方

libcpucycles is a small timing library for counting CPU cycles across multiple CPU and operating-system counter mechanisms. It comes from the cr.yp.to ecosystem associated with Daniel J. Bernstein's performance-oriented cryptographic and systems software.

プロジェクトの歴史

The official introduction describes libcpucycles as a microlibrary for cycle counting, with a simple API: include `cpucycles.h`, call `cpucycles()`, and link with `-lcpucycles`. The project abstracts machine-level counters such as amd64 TSC/PMC, ARM counters, RISC-V counters, and OS fallbacks such as `mach_absolute_time`, `perf_event`, `CLOCK_MONOTONIC`, and `gettimeofday`.

The release notes visible in the 20250925 documentation show active portability work after the early 2023 tarballs, including s390x counter support, FreeBSD support, arm32-1176 support, a `cpucycles-info` man page, and macOS build fixes.

採用の歴史

Adoption is concentrated among developers who need reproducible low-overhead timing for cryptography, benchmarking, and systems tuning. Its appearance in Homebrew, Debian, Ubuntu, Fedora-family packages, and Nix reflects a package-manager role as a tiny measurement primitive rather than an end-user application.

使われ方

Programmers use libcpucycles when they want an architecture-aware cycle counter without writing per-platform assembly and fallback code. Package users also get tools such as `cpucycles-info` and `cpucycles-open`, which help inspect available counters and support benchmarking workflows.

パッケージ好きにとっての重要性

libcpucycles is package-nerd interesting because it packages the messy hardware reality of cycle counters into a minimal library. It is deliberately small, but its value is in the portability table: one dependency handles CPU families and OS timing APIs that would otherwise become build-system conditionals in every benchmark.

タイムライン

  • 2023-01-10: Release notes document `cpucycles_version()` and s390x counter work.
  • 2023-01-15: Release notes mention behavior alignment for `cpucycles_version()`.
  • 2024-01-14: Release notes add arm32-1176 counter support, FreeBSD support, and install/license documentation updates.
  • 2024-03-18: Release notes mention macOS porting fixes and the `cpucycles-info` man page.
  • 2025-09-25: Documentation tree published for libcpucycles-20250925.

Related projects

  • Related projects include the broader cr.yp.to software family, architecture-specific cycle counters such as TSC and PMC, Linux `perf_event`, POSIX clocks, and benchmarking code in cryptographic libraries.

セキュリティ状態

リスクレベル: グリーン

library-like package without higher-risk signals.

リスク分類器

リスク グリーン · 信頼度 低 · appliance

理由

  • library-like package without higher-risk signals

信号

  • metadata:library-like

インストール挙動

  • formula メタデータに Homebrew post-install フックは記録されていません。
  • Homebrew bottle メタデータは 6 個のプラットフォームターゲットで利用できます。

推奨レビュー

エージェントに無人実行させる前に、このツールが平文の認証情報を読むか、リモート状態を書き込むか、成果物を公開するか、プラグインを起動するかを確認してください。

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix
/etc/cpucyclespersecond

実行可能ファイル

インストールされる実行可能ファイル

コマンド種類公開範囲メモ
cpucycles-infocliグローバル実行可能ファイル
cpucycles-opencliグローバル実行可能ファイル

鮮度

バージョンと鮮度

これらの信号は、ページ生成時期、パッケージマネージャの活動、上流リリース比較を分けて示します。バージョン遅れは、証拠 URL と比較可能なバージョンがある場合だけ警告されます。

ページ生成日2026-09-19
マネージャ版20260901
マネージャ更新日
ローカルデータOK
上流not checked
検出された最新未検出

https://cpucycles.cr.yp.to/

  • 情報No package-manager update timestamp was available.信頼度 低
  • 情報Release/tag comparison is only available for GitHub repositories.https://cpucycles.cr.yp.to/信頼度 none

インストールメタデータ

パッケージメタデータ

パッケージキーbrew:libcpucycles
バージョン20260901
パッケージマネージャHomebrew
パッケージマネージャページhttps://formulae.brew.sh/formula/libcpucycles
ホームページhttps://cpucycles.cr.yp.to/
上流ドキュメントhttps://cpucycles.cr.yp.to/
ライセンスLicenseRef-Homebrew-public-domain OR CC0-1.0 OR 0BSD OR MIT-0 OR MIT
ソースアーカイブhttps://cpucycles.cr.yp.to/libcpucycles-20260625.tar.gz
Bottle利用可能 (対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install未定義
サービス宣言なし

レジストリ情報

ソースデータベース詳細

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Namelibcpucycles
Version Scheme0
Revision0
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • stable

ソースデータベース一致

他のパッケージマネージャ記録

一致は外部パッケージマネージャインデックスから取得され、ローカルの Automic Vault パッケージリンクとは分けて表示されます。

Debian apt95%

cpucycles 0~20240318-2

command-line tool for counting CPU cycles (libcpucycles)

https://cpucycles.cr.yp.to/

sudo apt install cpucycles
  • Section: devel
  • Architecture: amd64
  • Source Package: libcpucycles
  • 2 依存関係
  • normalized package name match
  • 一致条件: Libcpucycles
Debian stable package indexes · deb.debian.org · Debian stable package indexes: cpucycles from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libcpucycles-dev 0~20240318-2

library for counting CPU cycles - development files

https://cpucycles.cr.yp.to/

sudo apt install libcpucycles-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: libcpucycles
  • 1 依存関係
  • normalized package name match
  • 一致条件: Libcpucycles
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libcpucycles-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libcpucycles1 0~20240318-2

library for counting CPU cycles

https://cpucycles.cr.yp.to/

sudo apt install libcpucycles1
  • Section: libs
  • Architecture: amd64
  • Source Package: libcpucycles
  • 1 依存関係
  • normalized package name match
  • 一致条件: Libcpucycles
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libcpucycles1 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

libcpucycles

nix profile install nixpkgs#libcpucycles
  • normalized package name match
  • 一致条件: Libcpucycles
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/li/libcpucycles/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

cpucycles 0~20240114-1

command-line tool for counting CPU cycles (libcpucycles)

https://cpucycles.cr.yp.to/

sudo apt install cpucycles
  • Section: universe/devel
  • Architecture: amd64
  • Source Package: libcpucycles
  • 2 依存関係
  • normalized package name match
  • 一致条件: Libcpucycles
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: cpucycles from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libcpucycles-dev 0~20240114-1

library for counting CPU cycles - development files

https://cpucycles.cr.yp.to/

sudo apt install libcpucycles-dev
  • Section: universe/libdevel
  • Architecture: amd64
  • Source Package: libcpucycles
  • 1 依存関係
  • normalized package name match
  • 一致条件: Libcpucycles
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libcpucycles-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libcpucycles1 0~20240114-1

library for counting CPU cycles

https://cpucycles.cr.yp.to/

sudo apt install libcpucycles1
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: libcpucycles
  • 1 依存関係
  • normalized package name match
  • 一致条件: Libcpucycles
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libcpucycles1 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
dnf95%

libcpucycles 20260625-2.fc45

Library for counting CPU cycles

https://cpucycles.cr.yp.to/

sudo dnf install libcpucycles
  • License: LicenseRef-Fedora-Public-Domain OR 0BSD OR MIT-0 OR MIT
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libcpucycles
  • 4 依存関係
  • 2 提供
  • normalized package name match
  • 一致条件: Libcpucycles
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: libcpucycles from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/652278618dec9c023176a80c435a32a2c8154869fb0eb662c267a54df28d77d9-primary.xml.zst
dnf95%

libcpucycles-devel 20260625-2.fc45

Development files for libcpucycles

https://cpucycles.cr.yp.to/

sudo dnf install libcpucycles-devel
  • License: LicenseRef-Fedora-Public-Domain OR 0BSD OR MIT-0 OR MIT
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libcpucycles
  • 2 依存関係
  • 1 提供
  • normalized package name match
  • 一致条件: Libcpucycles
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: libcpucycles-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/652278618dec9c023176a80c435a32a2c8154869fb0eb662c267a54df28d77d9-primary.xml.zst
dnf95%

libcpucycles-static 20260625-2.fc45

Static version of the libcpucycles library

https://cpucycles.cr.yp.to/

sudo dnf install libcpucycles-static
  • License: LicenseRef-Fedora-Public-Domain OR 0BSD OR MIT-0 OR MIT
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libcpucycles
  • 1 依存関係
  • 1 提供
  • normalized package name match
  • 一致条件: Libcpucycles
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: libcpucycles-static from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/652278618dec9c023176a80c435a32a2c8154869fb0eb662c267a54df28d77d9-primary.xml.zst

ソース経路

リポジトリデータから生成

このページは scripts/generate-pkg-sqlite.py が生成した非公開のパッケージ SQLite アーティファクトから av-web によって提供されます。

使用ソース

  • Geiger risk classifier
  • cross-ecosystem install command graph
  • curated configuration and credential file locations
  • curated package history
  • external package-manager database matches
  • package relationship graph
  • package version freshness
  • package-page enrichment
  • pkg.so package database
  • pkgdb category and tag curation