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Cache replacement method and device

A cache replacement and caching technology, which is applied to electrical components, transmission systems, etc., can solve the problems of low cache hit rate, unfavorable cache space release, and low cache space utilization, so as to achieve the effect of improving utilization rate and cache hit rate

Inactive Publication Date: 2017-06-23
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above method can be used to achieve cache replacement, the randomness of the selected content items is not conducive to the release of cache space, resulting in low cache space utilization, which may lead to low cache hit rate

Method used

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Embodiment Construction

[0070] 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.

[0071] The present invention will be described in detail below through specific examples.

[0072] figure 1 It is a schematic flowchart of a cache replacement method provided by an embodiment of the present invention. The cache replacement method can be applied to a target node of an information center network ICN, and the method includes steps:

[0073] S101: Receive a content item to be cached;

[0074] In order to clearly describe the embodiment of the pr...

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Abstract

The embodiment of the invention provides a cache replacement method and device. According to the method, after a content item to be cached is received, in the condition that a cache space is fully filled, the access frequency of each content item cached in a current cache space is calculated, when multiple smallest first content items with a same access frequency exist, a first replacement content item is determined according to the cache memory of each first content item, and then the content item to be cached is substituted by the first replacement content item. By applying the scheme provided by the embodiment of the invention, the cache substitution is carried out, the replacement content item is reasonably determined according to the cache memory of a cached content item, the utilization rate of the cache space is improved, and thus a cache hit rate is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a buffer replacement method and device. Background technique [0002] In recent years, with the rapid development of Internet technology, users' demand for network information has grown explosively. Users pay attention to the information itself, rather than the storage location of information. Therefore, in order to meet the access needs of massive information, the information center network ( Information centric networking (ICN) was proposed. ICN is an information-centric network communication model, replacing the traditional address-centric network communication model. The communication mode has evolved from host to host to host to network, and the forwarding mechanism has changed from the traditional storage Forwarding evolved into cache forwarding. [0003] Normally, the cache space configured by network nodes is relatively small, and with the continuo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/5682
Inventor 芮兰兰邱雪松陈炳伟郭辉王颖
Owner BEIJING UNIV OF POSTS & TELECOMM