JPS63314651A - File control system for execution of proper entry execution in finite memory space - Google Patents

Abstract

PURPOSE:To realize the availability of a memory space by registering the using state of the data entered during execution of the processing to reform the data within a file based on said data using state and evolving the file into a finite memory space. CONSTITUTION:The data entry frequencies counted in a data file 30 of a large information quantity and a data file 31 of a small information quantity used in the daily jobs 29 are written into an information file 32, and then registered into an information file 24 in an external processing part 20 at the end of a job based on the data entry frequency. Then the data 33 having a large entry frequency in a master file 25 is reformed into a data file 26 in the format of the data 39 based on the file 24. While the data 33 having a small entry frequency is reformed into a data file 27 in the format of the data 44. Both files 26 and 27 are evolved to the data files 30 and 31 in a main memory respectively before the jobs are processed. Thus the effective application is possible with a memory space.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a file management method, and particularly to a file management method for effectively utilizing limited memory in a system having a limited memory space.

[Conventional technology]

Conventional file management methods deploy the data necessary for business processing in a fixed format in a limited memory space.0For example, Figure 5 is a block diagram showing a conventional file management method. The mask file 14 is expanded as it is into the file 19 of the main memory 18 by the expansion means 16 of the file management section 15 and managed. As shown in FIG. 4(A), data was managed regardless of the number of data entries.

[Problem that the invention seeks to solve]

In the conventional file management method described above, a fixed amount of data is always stored in the memory regardless of the frequency of data entry. For this reason, data with a small number of entries is expanded to the same amount of memory as data with a large number of entries. Therefore, data with a small number of entries also occupies the same amount of memory as data with a large number of entries, and there is a drawback that the memory cannot be used effectively.

Means for Solving the Problems] The file management method of the present invention for proper entry lines in a finite memory space includes a means for registering the usage status of data entered during processing, and a means for registering the usage status of data entered during processing. and means for reorganizing the data in the file, and means for associating the file with a finite memory space.

Embodiment] Next, the present invention will be explained with reference to the drawings. Figure 1 is a block diagram showing an embodiment of the present invention. In the figure, 1
is a mask file, 2 is an information file with the usage situation of the pig, 3 is the administrative department, 4 is the reorganization means, and based on the information file of 2, the mask file of 1 is created according to the usage frequency. File 7 with a large amount of information is in charge of the process of organizing files with a large amount of information. Reference numeral 5 denotes a rasterization means, which controls the processing of rasterizing files 7.8 into files 11.12 in the main memory 10, respectively. Reference numeral 6 indicates a registration means, in which the data entry information 13 of files 11 and 12 in the main memory 10 entered by the business program 9 is stored in the information file 2.
Controls the process of registering.

FIG. 2 is a diagram showing the flow of processing in the present invention.

FIGS. 3A, 3B, and 3C are diagrams showing examples of data formats. The number of data entries in the data file 30 with a large amount of information and the data file 31 with an information rate used in the daily work of No. 29 is written to the information file 32, and at the end of the work, by the registration process of the number of data entries of No. 21. It is registered in the information file 24 within the external processing 20. Based on this information file 24, the data 33 in the mask file 25 is processed by the data file reorganization process 22.
Those with a large number of entries are reorganized into the data file 26 in the format of data 39, and those with a small number of entries are reorganized into the data file 27 in the format of data 44. Before business processing, these data files are expanded into data files 30 and 31 in the main memory by data file expansion processing 23, respectively. By repeating the above process every day, the main memory always maintains information proportional to the frequency of data entries, and the memory can be used effectively. In addition, business programs can process files by accessing files with the most entries first. It is also possible to increase the speed.

〔Effect of the invention〕

As explained above, the present invention has the effect that limited memory space can be used effectively by performing file management that expands data into a memory area as shown at 48 in FIG. 4(B) according to data entry. There is.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a flow chart showing the processing of the present invention, and Figs. 3 (A) and (B).
, (C) is a data format diagram, Figure 4 (A), (
B) is a diagram explaining the memory management situation, and FIG. 5 is a block diagram showing an example of a conventional file management device. 1...Mask file, 2...Information file, 3.
... File management, 4. Reorganization means, 5. Deployment means, 6. Registration means, 7, 8. File, 9.
... Business program, 10... Main memory, 11.
12... File (memory), 13... Data entry information, 14... Mask file, 15... File management, 16... Expansion means, 17... Business program, 18... Main Memory, 19...File (
20... External processing, 21... Data entry count registration processing, 22... Data file reorganization processing, 23... Data file expansion processing, 24.
...Information file, 25...Mask file, 26.
27...Data file, 28...Internal processing, 29
...Daily work, 30.31...Data file (memory), 32...Figure 2

Claims (1)

[Claims] In a file management method in a system having a finite memory space, means for registering the usage status of data entered during processing execution, means for reorganizing data in a file based on the usage status, and the above-mentioned A file management method for proper entry execution in a finite memory space, which has means for expanding a file in which data has been reorganized into a finite memory space.