JPH04296927A - High speed processing method for computer system - Google Patents

Abstract

PURPOSE:To increase the processing speed of a computer system by storing the files and the date having the high access frequency in a main storage so as to reduce as much as possible the overhead caused by 8 disk I/O. CONSTITUTION:Each of files 15, 16, 17 and 18 having the high access frequency is provided in a main memory 1 as a memory disk 13. Thus the disk I/O processing time can be omitted and the processing speed of a computer system is extremely increased.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-speed processing method for a computer system.

0002

[Prior Art] FIG. 4 is a diagram showing a conventional system environment.
FIG. 5 is a configuration diagram showing the configuration of the software in FIG. 4. FIG. 4 shows EWS (Eng.
1 shows the hardware and software environment of a growing work station. In FIG. 4, 1 is an EWS main memory, 2 is an external disk connected by a bus, 12 is a kernel space which is the core part of the operating system, 11 is a user space, and 21 is a kernel space which is the core part of the operating system.
is a file system that can be accessed by the kernel 12.

Further, in FIG. 5, 11a is an application program, 21 is a kernel, 22 is a disk driver, 31 is a file system existing on an external disk, and 32, 33, 34, and 35 each represent a file on the external disk. ing.

Next, the operation of the conventional example will be explained using FIG. 5 as an example. In FIG. 5, assuming that an application program (hereinafter referred to as AP) 11a is a program that copies a file 32 on a file system 31, the kernel 21 receives a request from the AP 11a.
needs to make a request to the disk driver 22 to search for the location of the file 32, that is, the directory, and to make a physical copy of the file 32. Each time, I/O occurs to the disk driver 22, and it takes time to wait for the I/O. Specifically, the disk driver 22 specifies the physical location on the disk (cylinder number, track number, sector number), transfer destination address and size in the kernel space to the disk controller, and starts the device. Then, the process of waiting for a device termination interrupt is repeated.

[0005]

As described above, in the conventional software environment, files and data to be executed are located on an external disk, so disk I/O (INPUT/ OU
There was a problem that the process took a lot of time due to the input (TPUT). In particular, there is a problem in that the influence of disk I/O is large for files that are frequently accessed in the system.

The present invention has been made to solve the above-mentioned problems, and aims to realize a file system on an external disk on the main memory, and to speed up processing in the entire system.

[0007]

[Means for Solving the Problem] Therefore, in the present invention, a memory disk is mounted on the main memory, files and data that are frequently accessed are internally stored in the main memory as the memory disk, and the memory disk is mounted on the main memory. The purpose is to achieve the above object by using a high-speed processing method for a computer system that performs high-speed processing as a system without generating I/O.

[0008]

[Operation] The high-speed processing method of the computer system of this invention is as follows:
By installing a memory disk on the main memory, frequently accessed files and data can be stored in the main memory as the memory disk, and the system can perform high-speed processing without generating I/O to the disk. I do.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Two embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described using FIGS. 1 and 2. FIG. 1 is a diagram showing the system environment of a first embodiment of the present invention, and FIG. 2 is a configuration diagram showing the software configuration of FIG. 1.

In FIG. 1, 1 is a main memory, 2 is an external disk, 11 is a user space, 12 is a kernel space, 13 is a memory disk mounted on the main memory 1, and 14 is a main memory 1. This file system is equivalent to the frequently accessed file system 21 which is installed internally as a memory disk 13 in the computer.

FIG. 2 shows the software configuration of the first embodiment. In FIG. 2, 11a is an application program (AP), 210 is a kernel, 220 is a memory disk driver, and 31 is a file system existing on the main memory 1. , 32, 33, 34, and 35 each represent a file.

Next, the operation of the first embodiment will be explained using FIGS. 1 and 2. In response to a request from the AP 11a (FIG. 2), the kernel 210 needs to request the memory disk driver 220 to search the directory of the file 32 on the main memory and to make a physical copy of the file 32. The operation up to this point is the same as the conventional operation.

However, in the first embodiment, no I/O is performed on the disk, and only copying from the memory 1 is required, so there is no I/O waiting time. The memory disk driver 220 calculates the address on the file system 31 that corresponds to the physical location on the disk, and
Just copy it into 0.

The program for the memory disk driver 220 can be implemented by using the disk driver and simply replacing the interface with the H/W with a logic called memory copy.

Next, a second embodiment of the present invention will be explained using FIG. 3. FIG. 3 is a diagram showing the system environment of the second embodiment of this invention. In FIG. 3, the same reference numerals as those in the first embodiment indicate the same or corresponding parts, and redundant explanation thereof will be omitted.

The difference between the second embodiment and the first embodiment is that in the first embodiment, frequently accessed files are collected on the main memory 1 to realize high-speed processing of the system. However, this second embodiment is shown in FIG.
As shown in FIG. 2, even if no files are stored in the main memory 1, as long as there is only an empty file system 14, the same effect as in the first embodiment can be obtained depending on the operating method. It is. The operating method will be illustrated and explained below.

For example, compilers and linkers, which are program development support tools, need to create a large number of intermediate codes in the process of generating final objects, and these codes are usually placed in a work area on a disk.

Therefore, by locating this work area in the main memory, the speed can be improved. This method is especially effective because compilers often access disks.

[0019]

As described above, according to the present invention, the file system on the external disk is realized on the main memory, so that the entire system can be processed at high speed.

[Brief explanation of drawings]

[Figure 1] Diagram showing the system environment of the first embodiment of this invention

[Figure 2] Block diagram showing the software configuration in Figure 1

[Figure 3] Diagram showing the system environment of the second embodiment of this invention

[Figure 4] Diagram showing the system environment of the conventional example

[Figure 5]
Configuration diagram showing the software configuration in Figure 4

[Explanation of symbols]

1 Main storage memory 2 External disk 11 User space 12 Kernel space 13 Memory disks 14, 21 File system 15, 16, 17, 18, 22, 23, 24, 25
File Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] Claim 1: A memory disk is mounted on a main memory, and frequently accessed files and data are internally stored in the main memory as the memory disk, and no I/O is performed on the disk, and the system is A high-speed processing method for a computer system characterized by high-speed processing.