Method for replacing cache files, device and system thereof

A cached file and stored technology, applied in the field of computer communication, can solve problems such as the drop in access hit rate, and achieve the effect of avoiding interference

Active Publication Date: 2012-06-20
HUAWEI CLOUD COMPUTING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The technical problem to be solved by the embodiments of the present invention is to provide a cache file replacement method, device, and system to solve the problem in the prior art that cache files with low access frequency cannot be replaced from the cache in time, thereby causing access Hit rate drop problem

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  • Method for replacing cache files, device and system thereof
  • Method for replacing cache files, device and system thereof

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Embodiment Construction

[0031] 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.

[0032] The cache file replacement method provided by the embodiment of the present invention can reduce the impact of the fluctuation of the latest access information, and prevent the access information long ago from interfering with the current sorting after the access pattern changes.

[0033] see figure 2 , is a cache file replacement method provided in the first embodiment of the present invention. This method is used to replace each cache file in the pr...

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Abstract

The present invention relates to a method for replacing cache files comprising the following steps: acquiring the historical access frequency and the current access frequency of the each stored cache file,acquiring the average access frequency of each cache file according to the historical access frequency, the current access frequency, the weight value of the preset historical access frequency, and the weight value of the preset current access frequency, wherein the weight value of the preset historical access frequency is less than the weight value of the preset current access frequency,acquiring the cache file with the smallest average access frequency,and replacing the cache file with the smallest average access frequency by using the new cache file. The method for replacing the cache file can improve the effectiveness of the cache decision. Besides, the present invention also discloses a device for replacing cache files and a network system thereof.

Description

technical field [0001] The invention relates to the field of computer communication, in particular to a cache file replacement method, device and system. Background technique [0002] With the popularization of the network, the data transmitted by the network is not limited to text, but also includes video data. Since the data transmission of video VOD (Video On Demand, video on demand technology) application has the characteristics of high bit rate and long-time transmission, there are high requirements on the bandwidth and response speed of the VOD server. [0003] Therefore, it is considered to use limited storage space to store some video content as a local proxy server to provide data to users, thereby reducing the data traffic of the network backbone. Such as figure 1 As shown, 1, 2, and 3 are streaming media file servers, 4 is a proxy server, and user 5 enjoys streaming media services through the proxy server. [0004] Since the cache space of the proxy server is l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F12/12H04L29/06H04L29/08G06F12/0871G06F12/122
CPCG06F12/12G06F2212/463G06F12/122G06F12/0871
Inventor 凌强徐理想陆海翔王凤陈骞
Owner HUAWEI CLOUD COMPUTING TECH CO LTD
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