# 使用 Homebrew, Nix 安装 jhiccup 查看 jhiccup 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。 ## 安装 ```sh sudo av install brew:jhiccup ``` 其他安装命令: ### macOS - Homebrew (100%): ```sh brew install jhiccup ``` 证据: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#jhiccup ``` 证据: nixpkgs package indexes: pkgs/by-name/jh/jhiccup/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## 软件包事实 - **软件包键:** brew:jhiccup - **软件包管理器:** Homebrew - **软件包管理器页面:** - **版本:** 2.0.10 - **来源摘要:** Measure pauses and stalls of an app's Java runtime platform - **主页:** - **仓库:** - **上游文档:** - **许可证:** CC0-1.0 OR BSD-2-Clause - **源码归档:** - **最后更新:** 2026-07-04T13:13:40+09:00 - **已生成:** 2026-07-08T18:08:21+00:00 ## 可执行文件 - jHiccup (cli) - jHiccupLogProcessor (cli) - jHiccupPlotter (cli) - jHiccup (别名) - jHiccupLogProcessor (别名) - jHiccupPlotter (别名) ## 安装行为 - post-install 钩子: 未定义 - Bottle: 可用 于 all ## 版本和新鲜度 - 页面生成时间: 2026-07-08 - 管理器版本: 2.0.10 - 管理器更新时间: 2026-07-04 - 本地数据: OK - 上游仓库: https://www.azul.com/products/components/jhiccup/ - 信息: Release/tag comparison is only available for GitHub repositories. ## 项目历史与用法 jHiccup is Gil Tene's Java latency-observation tool for measuring platform pauses, including JVM stalls and operating-system or hardware scheduling noise. It records the delays a Java application experiences when it is not continuously runnable. ### 项目历史 The public repository was created in 2013 and the README identifies the author as Gil Tene of Azul Systems. The first tagged line visible in the repository is jHiccup 1.3.5 from November 2013, and the 2.0.x line reached 2.0.10 in 2018. The tool reflects Azul's long-running focus on Java pause behavior. It can run as a Java agent, attach to an already running process, or wrap an existing Java command, making it practical for production-like measurements without rewriting the application under test. ### 采用历史 jHiccup spread among JVM performance engineers because it measures latency symptoms from the application's point of view rather than only reporting garbage-collector events. Azul's product page and Prime documentation keep it available as an open-source component and describe its use in evaluating JVM runtime pauses. Its package-manager footprint is narrower than general-purpose CLIs, but Homebrew and Nix packaging make sense: the audience is specialized, and the tool is most useful when an engineer can install it quickly on a machine under test. ### 使用方式 jHiccup starts a thread that sleeps at a small interval and records wake-up delays beyond the expected sleep time. It writes histogram logs that can be processed by jHiccupLogProcessor or viewed with HdrHistogram-based tools. Common use cases include comparing JVM pause behavior, separating application-visible stalls from operating-system noise, attaching a control process for baseline idle hiccups, and producing charts for latency investigations. ### 为什么软件包爱好者会关心 For package nerds, jHiccup is a good example of a tiny diagnostic package with a highly specific audience. It packages an expert performance concept into command-line tools, a Java agent, and log-processing utilities rather than a full monitoring platform. It is also historically tied to HdrHistogram and the Java low-latency community, where percentile distributions and pause visibility matter more than average throughput. ### 时间线 - 2013: The public jHiccup repository was created and jHiccup 1.3.5 was tagged. - 2018: jHiccup 2.0.10 was tagged. - 2021: The README was updated with a Works with OpenJDK badge, reflecting continued compatibility signaling. ### Related projects - HdrHistogram is the histogram format and library used by jHiccup logs. - HistogramLogAnalyzer and HdrHistogramVisualizer are named by the README as tools for analyzing or plotting histogram logs. - Azul Prime documentation uses jHiccup as part of JVM pause evaluation workflows. ### 来源 - - - - - ## 安全说明 generalized runtime or code generation signal. - **Geiger 风险:** yellow / 中 - generalized runtime or code generation signal ## 源数据库详情 - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** jhiccup - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## 其他软件包管理器记录 - Nix - jhiccup: normalized package name match | nixpkgs package indexes: pkgs/by-name/jh/jhiccup/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## 相关链接 - [Secret-risk packages](https://www.automicvault.com/zh-hans/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals. - [Terminal utility packages](https://www.automicvault.com/zh-hans/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/zh-hans/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/zh-hans/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [gcviewer](https://www.automicvault.com/zh-hans/pkg/brew/gcviewer/) - Shares av.db curated category or tags: cli, developer-tools, java, jvm, performance. - [httpstat](https://www.automicvault.com/zh-hans/pkg/brew/httpstat/) - Shares av.db curated category or tags: cli, developer-tools, latency, performance. - [jmxterm](https://www.automicvault.com/zh-hans/pkg/brew/jmxterm/) - Shares av.db curated category or tags: cli, developer-tools, java, monitoring. - [bnd](https://www.automicvault.com/zh-hans/pkg/brew/bnd/) - Shares av.db curated category or tags: cli, developer-tools, java. - [byteman](https://www.automicvault.com/zh-hans/pkg/brew/byteman/) - Shares av.db curated category or tags: cli, developer-tools, java. - [cfr-decompiler](https://www.automicvault.com/zh-hans/pkg/brew/cfr-decompiler/) - Shares av.db curated category or tags: cli, developer-tools, java. - [checkstyle](https://www.automicvault.com/zh-hans/pkg/brew/checkstyle/) - Shares av.db curated category or tags: cli, developer-tools, java. - [fastjar](https://www.automicvault.com/zh-hans/pkg/brew/fastjar/) - Shares av.db curated category or tags: cli, developer-tools, java. ## Combined YAML source View the package source record on GitHub. [combined/jhiccup.yml](https://github.com/automic-vault/db/blob/main/combined/jhiccup.yml) ## 来源 - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph