codepen io

Java IO producer stream and byte streamI. Basic Concepts Stream: flows from one end to the other, from the source to the destination.Always centered on the program, it is a program and a file | array | Network Connection | database operations. Ii. IO stream classification 1. Flow Direction: Input stream and output stream 2. Data: Byte stream: Binary. It can process text files, videos, and audios.Upload stre

Disks are usually the slowest subsystem of the computer and are the most prone to performance bottlenecks because the disk is farthest from the CPU and the CPU accesses the disk to involve mechanical operations such as rotating shafts, track-seeking, etc. The speed difference between accessing the hard disk and accessing the memory is calculated in order of magnitude, just like the difference between 1 days and 1 minutes. To monitor IO performance, it

In JDK 1.4, the NIO package is added, which is aimed at improving the IO speed. However, we all know that with the NIO package added, the old Io package is actually overwritten. Even if the NIO package is not displayed, You can obviously feel the speed improvement. In addition, many people only know the inputstream or outputstream of the buffer when using the IO

Chapter Content　　1 synchronous, asynchronous, blocking, non-blocking concepts25 IO Models: Blocking IO, non-blocking IO, multiplexed io, signal driven IO, asynchronous IO individual featuressynchronous, asynchronous, blocking, non

In the high-performance I/O design, there are two well-known modes reactor and Proactor modes, where reactor mode is used for synchronous I/O, and Proactor is used for asynchronous I/O operations. Before comparing these two patterns, we first understand a few concepts, what is blocking and non-blocking, what is synchronous and asynchronous, synchronous and asynchronous are for application and kernel interaction , Synchronization refers to the user process triggering

According to UNIX network programming, IO models can be divided into: blocking io, non-blocking io, io multiplexing, signal-driven IO, and asynchronous Io, divided into two classes according to POSIX standards: synchronous

First, IO Model:1.blocking io blocking IO2.nonblocking io non-blocking IO3.IO Multiplexing IO Multiplexing4.signal driven IO signal driven IO5.asynchronous io Asynchronous IOSecond, blo

Preface Before seeing a very humorous way to explain the windows of the socket IO model, to borrow this story to explain the Linux socket IO model; Lao Chen has a daughter who works in the field and can't often come back, Lao Chen and her through letter contact.Their letters will be delivered by the postman to the mailroom in front of their neighborhood. This is very similar to the socket model. The foll

require the CPU (IO), it is suitable for the association process;Benefits of the co-process: No overhead for thread context switching No need for atomic operation locking and synchronization overhead "Atomic operations (atomic operation) do not require synchronized", so-called atomic operations are operations that are not interrupted by the thread scheduling mechanism; Once this operation starts, it runs until the end, and the

UNIX file io is for file descriptors, while standard IO operations revolve around streams. When a stream is initially created, it is not directed. If a multibyte IO function is used on an non-directed stream, the orientation of the stream is set to wide orientation, and if a single byte IO function is used on the non-d

I. IO model1. IO Model classification1. Blocking IO--------blocking IO2. Non-blocking IO------nonblocking IO3. multiplexed io-------multiplexing4. Signal-driven IO-------signal driven IO