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High speed cache system and method for implementing file access

A high-speed cache and file access technology, applied in the direction of memory system, memory address/allocation/relocation, special data processing applications, etc., can solve the problem of being accessed again, achieve fast cache, flexible application, and improve retrieval efficiency Effect

Active Publication Date: 2008-05-28
KONKA GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Second, once data is accessed, it is likely to be accessed again in a short period of time

Method used

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  • High speed cache system and method for implementing file access

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] As shown in Fig. 1, the present invention provides a kind of high-speed cache system that realizes file access, and it comprises: index area unit, data area unit and free pointer linked list unit; Access to improve the retrieval efficiency of file information. The cache system is described in detail as follows.

[0023] The data area unit includes a continuous, fixed-size storage unit, which is used to occupy a continuous corresponding memory space as each storage unit according to the size and number of preset storage units, and the storage unit is used for recording files including file types. and the file information of the file name; in the present invention, the high-speed cache adopts the fixed storage unit design, and the size of each storage unit is configurable, and the number of storage units can also be configured. When the...

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Abstract

The invention discloses a high speed cache system for realizing file visit and a method, the system comprises an index area unit, a data area unit, and an idle pointer chained list unit, wherein the data area unit comprises continuous storing units with fixed sizes, the data area unit occupies continuous and corresponded inner memory spaces which are used as each storing unit according to size and number of the storing units which are preset, the storing units record information of files, the index area unit is provided with index managing area modules and at least one index node. Each catalog is provided with an index node which stores the absolute path which is corresponded with the catalogs and catalogs and information of files under the absolute path, and the index nodes adopt an object pointer to point ate each storing unit which records information of each file. The idle pointer chained list unit maintains an idle point chained list, and each chained list unit respectively stores pointer of each storing unit. The invention has the advantage of flexible and convenient application, and quickly realizes high-speed cache of data of local or remote magnetic disks, and improves index efficiency of files.

Description

technical field [0001] The invention relates to the reading of disk files, in particular to a cache system and method for realizing file access. Background technique [0002] In order to reduce access to disks, especially to remote disks, and improve file retrieval efficiency, the prior art adopts a high-speed cache method, that is, commonly used information is placed in a high-speed cache memory. [0003] The value of disk cache lies in two aspects: First, the speed of accessing disk is much lower than the speed of accessing memory, so accessing data from memory is faster than accessing data from disk. Second, once data is accessed, it is likely to be accessed again in a short period of time. This principle of intensively accessing the same piece of data in a short period of time is called temporal locality. The principle of temporary locality can guarantee: if the data is cached when it is accessed for the first time, it is very likely to be hit by the cache again in a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/08G06F17/30G06F12/0877
Inventor 刘毅
Owner KONKA GROUP
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