Programming VIP

preface stay Eal:Error reading from file descriptor 33: Input/output error In this article, I described the problem of printing Input/output error when dpdk program in VMWARE environment uses 82545EM virtual network card. This problem was finally solved by modifying igb_uio code repair, after repair, I can't help thinking about how user mode ...

preface The last chapter introduces the development process and practical application of Io. When talking about the multithreading model of multiplexer, I have gone through it. This chapter will supplement here, and then go to Netty's IO model. Finally, the idea will be realized through code. 1, Introduce In the previous chapter, a multiplex ...

Reactor mode At present, the mainstream network communication libraries, such as libevent of C/C + + and Netty of Java, use reactor mode. Reactor pattern is a design pattern of event processing. After I/O requests arrive, the service handler uses I/O reuse technology to synchronously send these requests to the relevant request handlers. How to ...

epoll related system calls #include <sys/epoll.h> int epoll_create(int size); epoll_create creates an epoll model and returns a file descriptor pointing to the epoll model.Parameter is deprecated and reserved for compatibility. Fill in at will.The file descriptor is returned successfully, and - 1 is returned for failure. int e ...

Problem description In VMWARE virtual machine, 82545EM virtual network card is bound with IGB_ After UIO, run the dpdk program, which always has the following alarm information: Eal:Error reading from file descriptor 33: Input/output error The dpdk version used is 16.04 and the program is l2fwd. problem analysis 1. dpdk internal code Co ...