A kind of cache method, device and electronic equipment
A caching and memory technology, applied in the fields of caching methods, devices and electronic equipment, can solve problems such as poor performance, achieve the effect of ensuring cache performance and improving computer system performance
Active Publication Date: 2020-02-07
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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[0005] In view of the shortcomings of the prior art described above, the object of the present invention is to provide a caching method, device and electronic equipment for solving the problem of poor performance in the prior art
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[0059] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0060] see Figure 1 to Figure 7 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of the present invention, so that only the components related to the present invention are shown in the diagrams rather than the number, shape and Dimensional drawing, the type, quant...
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The embodiment of the invention provides a caching method and device and an electronic device. When a missing page is interrupted, the command type of the missing page interruption and a target address of a to-be-accessed main memory are obtained; when a data table item corresponding to the target address does not exist in a nonvolatile memory, target data is stored in a data page of the nonvolatile memory according to the command type; according to the command type and the target address, the data table item corresponding to the data page is determined; the corresponding data page is accessed by using the data table item, wherein the data table item and the data page are both stored into the nonvolatile memory. Nonvolatile memory space is controlled through the data table item, data in the main memory can be cached in the nonvolatile memory, since the nonvolatile memory and a system memory are mutually independent, even if a computer system occupies much system memory space, the cache performance can be ensured, and the computer system performance is thus improved.
Description
technical field [0001] The present invention relates to the technical field of data caching, in particular to a caching method, device and electronic equipment. Background technique [0002] In a computer system, the read and write access speed of the disk is the bottleneck of the system performance. Compared with the memory, the speed difference between the disk and the memory can usually reach an exponential level. In order to improve the read and write speed of the disk, the disk data is usually cached in the form of pagecache (Chinese: page cache). The page cache is a section of the physical memory of the system. When accessing the disk data, the disk data is cached in the physical memory. In order to achieve the purpose of improving access speed. [0003] However, the inventor has found through research that the size of the physical memory occupied by the page cache is usually dynamically allocated according to the load of the computer system. When the computer system ...
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IPC IPC(8): G06F12/0882
CPCG06F12/0882
Inventor 管慧娟范冬冬
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD