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1.I/O Basic Knowledge 1.1What is a file descriptor? In a network, a socket object is a 1 file descriptor, and in a file, 1 file handles (that is, the files object) are 1 file descriptors. In fact, it can be understood as a "pointer" or "handle", pointing to 1 socket or file object, when the file or socket changes, the object corresponding to the document descriptor, will also change accordingly.1.2What is I/O1, first understand what is I/O?I/O (input/output), which is input/output. The operating

Server-side programming often requires the construction of a high-performance IO model, with four of common IO models:(1) Synchronous blocking IO (Blocking io): The traditional IO model.(2) Synchronous non-blocking IO (non-blockin

analysis of high performance IO model Server-side programming often requires the construction of high-performance IO models, with four common IO models: (1) Synchronous blocking IO (Blocking io): The traditional IO model. (2) Sync

analysis of high performance IO model Server-side programming often requires the construction of a high-performance IO model, with four of common IO models: (1) Synchronous blocking IO (Blocking io): The traditional IO model. (2

IO modelLinux system IO is divided into two phases: The kernel prepares the data and copies the data from the kernel to the user space.This diagram outlines the process of moving data from an external disk to the memory of a running program.User space, kernel spaceNow the operating system is using virtual memory, then for the 32-bit operating system, its address space (virtual storage space) is 4G (2 of 32)

Python basic-I/O model and python-io Model I. I/O model IO indicates Input/Output in the computer, that is, Input and Output. Because the program and runtime data reside in the memory, it is executed by the super-fast computing core of the CPU, which involves data exchange, usually disks and networks, and IO interfaces are required. What are the differences betwe

Objective Blocking io (blocking IO) Non-blocking IO (nonblocking io) IO multiplexing (IO multiplexing) Signal-driven IO (signal driven

Note: This article is a lot of blog learning and summary, there may be an understanding error. Please take a skeptical look at the same time if there are mistakes to be pointed out. What is the difference between synchronous IO and asynchronous Io, what is blocking IO and non-blocking IO respectively? The answers given

36. IO model, 36io Model In particular, this essay is copied to egon (Lin Haifeng ). I. IO model Introduction To better understand the IO model, we need to review in advance: synchronous, asynchronous, blocking, non-blocking What are the differences between synchronous I/O and asynchronous I/O, blocking I/O, and non-blocking I/O? Different people may give differe

This article introduces socket in depth. i/O related information, which has previously been introduced to socket. i/O basic tutorials and applications. This article provides a more in-depth introduction to socket. i/O usage. For more information, see. This article introduces socket in depth. i/O related information, which has previously been introduced to socket. i/O basic tutorials and applications. This article provides a more in-depth introduction to socket. i/O usage. For more information, s

Socket. io (3) Deep Learning Preface Socket. io provides real-time event-based two-way communication. This article introduces socket. io in depth. Let's take a look at the details below. Static files By default, socket. io uses the socket. io-client package to provide socket

Original address: 1190000003063859What is the difference between synchronous IO and asynchronous Io, what is blocking IO and non-blocking IO respectively? The answers given by different people in different contexts are different. So first limit the context of this article.This article discusses the background of networ

What is the difference between synchronous (synchronous) IO and asynchronous (asynchronous) Io, what is blocking (blocking) IO and non-blocking (non-blocking) IO respectively? The problem is that different people may give different answers, such as wikis, that asynchronous IO