npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@zenweb/metric

v4.3.2

Published

Zenweb Metric module

Downloads

1,063

Readme

ZenWeb Metric module

zenweb 健康检测模块,用于生产环境的实例运行信息收集

ZenWeb

快速使用

安装模块

$ npm i @zenweb/metric

配置模块: 编辑项目启动文件

// 导入模块
import metric from "@zenweb/metric";
// 安装模块
app.setup(metric(/* 可选配置项 */));

配置项

| 项 | 值类型 | 默认值 | 说明 | |----|-------|-------|-----| | dir | string | process.env.LOG_DIR \|\| '/tmp' | 日志输出目录 | | filename | string | zenweb-metric.{yyyy}-{mm}-{dd}.log | 日志文件名 | | sampleInterval | int | process.env.ZENWEB_METRIC_SAMPLE_INTERVAL \|\| 10000 | 取样间隔(毫秒) | | slowTime | int | 100 | 慢请求时间 (毫秒) |

日志输出项

| 项 | 值类型 | 说明 | |----|-------|-------|-----| | timestamp | int | 本次采样记录时间戳 (秒) | | interval | int | 本次记录采样范围 (毫秒) | | cpu_time | int | 本次记录 CPU 用量 (毫秒) | | mem_rss | int | 内存占用 RSS (字节) | | mem_heap_total | int | 内存堆总大小 (字节) | | mem_heap_used | int | 内存堆已使用 (字节) | | mem_os_free | int | 内存操作系统空闲 (字节) | | os_load | float | 操作系统负载 % | | requests | int | 本次记录请求数 | | requests_slow | int | 本次记录的慢请求 | | requests_time | int | 本次记录请求总用时 |

如何计算

Apdex %

apdex = (requests - requests_slow) + requests_slow * 0.5) / requests

QPS

qps = requests / interval * 1000

CPU 用量 %

cpu_usage = cpu_time / interval

循环延迟

event_delay = interval - option.sampleInterval