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阿里云nodejs性能监控 #23

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AlexZ33 opened this issue Oct 28, 2019 · 4 comments
Open

阿里云nodejs性能监控 #23

AlexZ33 opened this issue Oct 28, 2019 · 4 comments

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@AlexZ33
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AlexZ33 commented Oct 28, 2019 •
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image

  • Apdex

Apdex——衡量服务器性能的标准

  • GC(avg / max)
    image

  • QPS
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AlexZ33 commented Oct 28, 2019

  • QPS
    每秒钟处理完请求的次数；注意这里是处理完。具体是指发出请求到服务器处理完成功返回结果。可以理解在server中有个counter，每处理一个请求加1，1秒后counter=QPS。

  • TPS
    每秒钟处理完的事务次数，一般TPS是对整个系统来讲的。一个应用系统1s能完成多少事务处理，一个事务在分布式处理中，可能会对应多个请求，对于衡量单个接口服务的处理能力，用QPS比较多。

  并发量：系统能同时处理的请求数

  RT：响应时间，处理一次请求所需要的平均处理时间

计算关系：

  QPS = 并发量 / 平均响应时间

  并发量 = QPS * 平均响应时间

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AlexZ33 commented Apr 10, 2020

Node.js 应用故障排查手册 —— Node.js 性能平台使用指南

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AlexZ33 commented Apr 10, 2020

aliyun-node/Node.js-Troubleshooting-Guide

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AlexZ33 commented Apr 10, 2020

关于Nodejs的性能监控思考？

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