What are some common interview questions related to epoll?

Apr 18, 2020 ... If it doesn't affect your gameplay or cause anything abnormal, you can safely ignore it. However from there I can only say it's something with ... Sep 19, 2022 ... What is Scala Native? Scala Native is an optimizing ahead-of-time compiler for the Scala language. Put simply: it enables you to compile Scala ... struct epoll_event { uint32_t events; /* Epoll events */ epoll_data_t data;. /* User data variable */. }; A union is a data structure that can hold a single ... epoll — efficient method used on Linux 2.6+. The EPOLLRDHUP (Linux 2.6.17, glibc 2.8) and EPOLLEXCLUSIVE (Linux 4.5, glibc 2.24) flags are supported since 1.11. Mar 18, 2023 ... The chat server is actively accepting and forwarding messages from and to multiple clients concurrently without being blocked on any particular socket. Name. epoll_ctl -- control an epoll file descriptor ; Synopsis. #include . int epoll_ctl (int epfd, int op, int fd, struct epoll_event * event); ... Dec 27, 2022 ... In this article, we will discuss how to optimize the connection processing method of NGINX and why the epoll method is particularly efficient. In this post we will implement a very, very simple non-blocking HTTP server in Rust, which will serve multiple requests at a time while still running only one ... Mar 12, 2024 ... 24:18 Go to channel Taking complete control: why IO multiplexing works well for webservers and GUIs. Chris Kanich The set of file descriptors that is being monitored via an epoll file descriptor can be viewed via the entry for the epoll file descriptor in the process's / ...

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what is epoll

• Can you use epoll to monitor events related to packet loss or retransmissions?
• What are the considerations for ensuring that all data is processed when using edge-triggered I/O?
• How does epoll handle resource accounting and billing in multi-tenant environments?
• How does epoll handle regular files?
• How does epoll handle events related to TCP keepalive probes or timeouts?
• Can you use epoll to monitor regular files?
• What is the timeout argument in epoll_wait? What happens if the timeout is -1 in epoll_wait?
• What is libev?
• What is the maximum number of events that can be returned by a single call to epoll_wait? What happens if more events are ready than the size of the event buffer?
• Can you use epoll to monitor file descriptors across different network namespaces?