Exploration of multiple IO mechanisms and applications in Linux
The application of Linux operating system in software engineering is relatively rich,and various commercial distribution versions of Linux are widely present in PC desktops,backend servers,and personal mobile terminals.The efficiency of data input and output in Linux directly determines the application execution efficiency of the operating system.In terms of hardware read and write speed,the data processing speed of the CPU is much faster than the data processing speed of the disk IO.Therefore,in Linux,optimizing IO performance has always been the focus of Linux efficiency optimization.There are five IO models in the Linux operating system:non blocking,blocking,multiplexing,signal driven,and asynchronous.These five IO models have different advantages and disadvantages,corresponding to different application scenarios.
Linux operating systemIO modelmultiplexingsignal driven
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