A method, device and computer-readable storage medium for reading and writing a disk

Abstract

The embodiment of the invention relates to the field of computer technology, and discloses a method, device, and computer-readable storage medium for reading and writing a magnetic disk. The disk reading and writing method provided in the present invention includes: determining the storage location of the resource to be accessed corresponding to the resource access request through a process, wherein each storage location of the resource to be accessed is provided with a corresponding read-write lock; The process performs a read-write lock operation on the read-write lock corresponding to the storage location of the resource to be accessed, obtains the corresponding permission, and completes disk read and write. The embodiment of the present invention improves the reading and writing speed of the disk IO and improves the performance of the server under high concurrent connection or disk IO operation.

Description

technical field [0001] The embodiment of the present invention relates to the field of computer technology, and in particular to a method, device, and computer-readable storage medium for reading and writing a magnetic disk. Background technique [0002] With the continuous development of the network, Web applications on the Internet (Internet) have been in the stage of explosive growth. At present, there are a large amount of information published in the form of the Web, and there are various types. Users access information through the Web with a high frequency and a large amount of data. Hypertext Transfer Protocol (Hyper Text Transfer Protocol, referred to as "HTTP") requests have burst characteristics, often accessing web servers in the form of bursts and self-similar flows, and the HTTP request rate is high during peak hours, so large web sites are often in the state of server overload Phenomenon. Just because of the scale and access characteristics of Web applications...

AI Technical Summary

Problems solved by technology

The inventor found that there are at least the following problems in the prior art: Web servers usually use shared memory to store resources when dealing with high concurrent connections. Shared memory is to allow two unrelated processes to access the same logical memory. Data consistency storage, but in this way, under a large amount of resource cache and high-frequency disk IO operations, the shared memory method will affect the disk IO read and write rate due to resource critical area protection, resulting in a sudden drop in the throughput of the Web server, resulting in Web server performance drops sharply

In addition to using shared memory, web servers usually also use multi-process storage to store resources separately. Although this method solves the problem that the throughput of the web server drops sharply due to the impact of resource critical section protection on the disk IO read and write rate, However, due to the separate storage of multiple processes, resources will be repeatedly stored and updated, which will increase CPU consumption and disk IO consumption, thereby affecting server processing capabilities

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