Spring Boot嵌入式Tomcat性能 [英] Spring Boot Embedded Tomcat Performance

问题描述

我正在为我的应用程序开发Microservices API.我从Spring Boot应用程序开始.我创建了两个工件-带有嵌入式tomcat的业务代码" 和没有嵌入式tomcat的业务代码" .

I am developing Microservices API for my application. I started with Spring Boot application. I created two artifacts - "business code with embedded tomcat" and "business code without embedded tomcat".

比较性能结果时，我可以看到非嵌入式tomcat"(即在独立的tomcat上执行)由于本机执行而产生了良好的输出.

When I compare the performance results, I can see that the "non-embedded tomcat" (i.e. executing on standalone tomcat) gives good output because of native execution.

那么基本上嵌入式tomcat和独立tomcat在实现方面有什么区别?

两次执行之间的性能如何变化?

How the performance varies between two executions?

推荐答案

我发现了此问题的根本原因.

I found out actual root cause of this issue.

APR(Apache可移植运行时)在tomcat线程执行中起着重要作用.

APR (Apache Portable Runtime) plays important role in tomcat thread execution.

默认情况下，嵌入式tomcat执行NIO. NIO和BIO是基于Java的执行，而APR是本机执行.当我们比较NIO和APR的性能时，APR快得多.

事实上，所有基于Linux的tomcat捆绑包都随附于tomcat lib文件夹下的APR库.

In fact all the Linux based tomcat bundles are shipped with APR libs under the tomcat lib folder.

与嵌入式tomcat相比，在嵌入式tomcat(即Spring Boot)中启用APR后，性能执行是相同的.

After I enabled APR in embedded tomcat (i.e. Spring Boot) performance execution was same compared to standalone tomcat.

http://tomcat.apache.org/tomcat-7.0-doc/apr.html

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