1 缘起想起这个题目的起因来自于近期的一次性能优化。要优化的是一个网上在线考试系统，这个系统是用spring框架开发的，部署也是常见的方式。后端是mysql数据库，应用服务器是tomcat，考试人员从互联网上登录进行考试。这个考试系统上要进行一次规模较大的在线考试，大概有800多人要同在一个考场上进行考试。以前这个考试系统上一次考试最大的人数是200人左右。由于同时考试的人数...

文章 2022-02-17 来自：开发者社区

sql server 运维时CPU，内存，操作系统等信息查询（用sql语句）

原文:sql server 运维时CPU，内存，操作系统等信息查询（用sql语句）我们只要用到数据库，一般会遇到数据库运维方面的事情，需要我们寻找原因，有很多是关乎处理器(CPU)、内存（Memory）、磁盘（Disk）以及操作系统的，这时我们就需要查询他们的一些设置和内容，下面讲的就是如何查询它们的相关信息。1、（1）获取数据库服务器CPU核数等信息(只适用于SQL 2005以及以上版本数据....

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