目录一、 OS层二、 DB层1. 全局情况2. 内存占js用详情最近连续遇到mysql内存占用过高导致服务器内存不足的问题，整理下收集到的常用分析语句。
Heres the scenario: User comes to my website and opens a webpage with some javascript functionality. User edits the data through javascript
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