File reading/writing method, file reading/writing system, file reading/writing equipment and computer storage medium
A technology of computer storage, reading and writing methods, applied in the computer field, to achieve the effect of avoiding resources and improving the balance of resource allocation
Inactive Publication Date: 2018-06-22
HANGZHOU SHIQU INFORMATION TECH CO LTD
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Problems solved by technology
[0006] The purpose of the present invention is to provide a method for reading and writing files, which can solve the technical problem of how to improve the balance of resource allocation in the process of performing IO operations on files in an existing Overlay FS to a certain extent
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0037] The action execution subject of each step in a file reading and writing method provided by the embodiment of the present invention can be a file reading and writing system provided by the embodiment of the present invention, and this system is applied to Overlay FS, so the embodiment of the present invention provides The action execution subject of each step in a file reading and writing method may be the Overlay FS. For the convenience of description, ...
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The invention discloses a file reading / writing method, a file reading / writing system, file reading / writing equipment and a computer storage medium, which are applied to an Overlay FS (Overlay Filesystem). The method includes: receiving an IO instruction sent by a VFS (Virtual File System); and judging whether an IO speed limit condition is met, and if yes, blocking the IO instruction until the IOspeed limit condition is not met, and otherwise, carrying out an IO operation on a target file according to the IO instruction. The file reading / writing method, the file reading / writing system, the file reading / writing equipment and the computer storage medium disclosed by the invention all realize limitation on the IO operation of the target file by virtue of the IO speed limit condition, avoid occupancy which is of the IO operation on the target file and on massive resources, and solve, to a certain extent, the problem of how to improve resource allocation proportionality in a process of carrying out the IO operation on the file by the existing Overlay FS.
Description
technical field [0001] The present invention relates to the field of computer technology, more specifically, to a file reading and writing method, system, equipment and computer storage medium. Background technique [0002] In computers such as Linux systems, there are situations where Overlay FS (Overlay Filesystem, joint file system) is used to manage files and the like. The management process will involve IO operations on files and the like, that is, read operations and / or write operations. . [0003] An existing method for an Overlay FS to perform an IO operation on a file is: the Overlay FS opens its own target file under the control of a VFS (virtual File System, virtual file system), so that the VFS directly performs an IO operation on the target file. [0004] However, in an existing Overlay FS method for performing IO operations on files, VFS directly performs IO operations on target files, which may cause the IO operations on target files to occupy a large amount ...
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IPC IPC(8): G06F9/50G06F3/06
CPCG06F3/061G06F9/5011G06F2003/0697
Inventor 许成光
Owner HANGZHOU SHIQU INFORMATION TECH CO LTD