epoll poll select

在Linux中，epoll、poll和select是实现IO多路复用机制的三种方式。其中，epoll在连接数少且连接活跃的情况下性能最好，因为它采用了回调机制，避免了轮询的开销，而且不会受到文件描述符数量增加的影响。相比之下，select和poll都采用了轮询的方式来检查文件描述符是否处于就绪态，随着文件描述符数量的增加，它们的效率会线性降低。所以，在连接数量较少且连接活跃的情况下，select和poll的性能可能会比epoll好。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *1* *3* [select，poll和epoll详解](https://blog.csdn.net/u010306832/article/details/119942290)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
- *2* [select、poll、epoll详解](https://blog.csdn.net/fengyuyeguirenenen/article/details/124234675)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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