[GitHub] [incubator-brpc] NageNalock commented on issue #1120: 当event_dispatcher_num 大于 num_threads 时，ctrl c失效

Tue, 29 Sep 2020 02:38:40 -0700 


NageNalock commented on issue #1120:
URL: https://github.com/apache/incubator-brpc/issues/1120#issuecomment-700588774


   > 你这个场景在实际生产环境下存在吗？还是纯粹为了研究，event_dispatcher_num 一般保持默认，即便要增加也远比worker个数少
   
   在进行项目技术调研, 场景里可能会有大量的短连接, 所以想把 event_dispatcher_num 调大. 
但是我发现似乎Brpc所有的链接都是由一个线程来完成的? 短连接场景的 CPU 负载很不均匀, 负载最高的 CPU 函数栈里可以看到是在抢 fd 的锁
   
![image](https://user-images.githubusercontent.com/33447197/94541557-4dd4f600-027a-11eb-9642-edac8d163ec3.png)
   
   
![image](https://user-images.githubusercontent.com/33447197/94541521-43b2f780-027a-11eb-9a2b-a1ad80862103.png)
   


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