CN105630602A

CN105630602A - Method for dynamically adjusting computer system resources

Info

Publication number: CN105630602A
Application number: CN201510949030.1A
Authority: CN
Inventors: 黄家明; 乔英良; 王建红
Original assignee: Shandong Mass Institute Of Information Technology
Current assignee: Shandong Mass Institute Of Information Technology
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2016-06-01
Anticipated expiration: 2035-12-18
Also published as: CN105630602B

Abstract

The present invention discloses a method for dynamically adjusting computer system resources. The method comprises: in a starting process, scanning resource demand of an IO device in a system; determining whether current system resource allocation meets the resource demand of the IO device; and if the current system resource allocation does not meet the resource demand of the IO device, dynamically adjusting a resource allocation ratio. The method disclosed by the present invention solves a frequent crash problem, which is caused by insufficient resources and a relatively large number of IO devices, of high-end products.

Description

A kind of method that resource for computer system dynamically adjusts

Technical field

The present invention relates to field of computer technology, be specifically related to a kind of method that resource for computer system dynamically adjusts.

Background technology

To multiprocessor computer system, conventional resource distribution mode is that system resource is distributed to by a certain percentage each processor at the beginning of starting. Along with the development of processor, the I/O slot quantity that server is supported gets more and more, and loads different I/O device on these slots, and its resources requirement is different. So, the mode of the resource allocation proportion determined that at the beginning of starting can not meet the different I/O device kinds that system is likely to load, after occurring frequently in certain I/O device of loading, the deadlock problem caused owing to certain processor resource requirement can not meet device requirement amount.

Summary of the invention

The technical problem to be solved in the present invention is: for overcoming this problem, and the present invention proposes a kind of method, and in start-up course, the I/O device resource requirement of each processor of dynamic scan, dynamically distributes resource by demand.

The technical solution adopted in the present invention is:

A kind of method that resource for computer system dynamically adjusts, described method is by, in start-up course, being scanned I/O device resources requirement in system, and judges whether the distribution of current system resource meets I/O device resources requirement, if being unsatisfactory for, then the method for dynamic adjustresources allocation proportion.

Described method operating procedure is as follows:

First, at the beginning of system start-up, from storage medium, read the preset ratio of the resource of each processor, and in this ratio, system resource is allocated;

Then, the phase upon actuation, when I/O device is initialized, scan the resources requirement of each I/O device, and the I/O device resources requirement under each processor is overlapped, draw each processor resource demand;

Afterwards, it is judged that whether current allocation proportion meets demand, if meeting, then normally starts; If being unsatisfactory for, then calculate new resource ratio in each processor demand, and replace the preset ratio in storage medium by new demand percentage, and send reset command;

After restarting, new allocation proportion meets resource requirement, and system normally starts.

Described method specific operation process is as follows:

The total resources of whole system is X, and the resource number of processor support is y, then the minimum share of processor is X/y;

Preset ratio is a:b:c:d ..., wherein a+b+c+d ...=y,

CPU0/1/2/3 ... stock number respectively a*X/y, b*X/y, c*X/y, d*X/y ...;

Scanning calculates resources requirement respectively A, B, C, the D of each processor ...;

Judge whether to satisfy condition A < a*X/y, B <b*X/y, C < c*X/y, D < d*X/y ...;

If satisfying condition, then normally starting, not doing resource adjustment;

If the condition of being unsatisfactory for, such as B > b*X/y, then calculate new demand percentage e:f:g:h ..., wherein e+f+g+h ...=y; This ratio is replaced the preset ratio in storage medium, and computer system is carried out reboot operation;

In restarting process, system resource is when processor initializes, according to new demand percentage e:f:g:h ... system resource is allocated; So, when IO initializes, will show that Current resource allocation proportion meets I/O device resource requirement, then normally start. So, the dynamic adjustment process of computer system is namely completed.

The invention have the benefit that

The inventive method solves because I/O device is more in high-end product, and the deadlock problem caused because of inadequate resource often occurred.

Accompanying drawing explanation

Fig. 1 is process and the I/O slot scattergram of a computer system.

Detailed description of the invention

Below according to Figure of description, in conjunction with detailed description of the invention, the present invention is further described:

Embodiment 1:

A kind of method that resource for computer system dynamically adjusts, it is characterized in that: described method is by start-up course, I/O device resources requirement in system is scanned, and judge whether the distribution of current system resource meets I/O device resources requirement, if being unsatisfactory for, then the method for dynamic adjustresources allocation proportion.

Embodiment 2:

On the basis of embodiment 1, described in the present embodiment, method operating procedure is as follows:

So, the dynamic adjustment of system resource is namely achieved.

Embodiment 3:

As it is shown in figure 1, on the basis of embodiment 2, described in the present embodiment, method specific operation process is as follows:

Preset ratio is a:b:c:d, wherein a+b+c+d=y,

The stock number of CPU0/1/2/3 respectively a*X/y, b*X/y, c*X/y, d*X/y;

Scanning calculates resources requirement respectively A, B, C, the D of each processor;

Judge whether to satisfy condition A < a*X/y, B <b*X/y, C < c*X/y, D < d*X/y;

If satisfying condition, then normally starting, not doing resource adjustment;

If the condition of being unsatisfactory for, such as B > b*X/y, then calculate new demand percentage e:f:g:h, wherein e+f+g+h=y; This ratio is replaced the preset ratio in storage medium, and computer system is carried out reboot operation;

In restarting process, system resource, when processor initializes, is allocated by system resource according to new demand percentage e:f:g:h; So, when IO initializes, will show that Current resource allocation proportion meets I/O device resource requirement, then normally start. So, the dynamic adjustment process of computer system is namely completed.

Embodiment of above is merely to illustrate the present invention; and it is not limitation of the present invention; those of ordinary skill about technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes fall within scope of the invention, and the scope of patent protection of the present invention should be defined by the claims.

Claims

1. the method that a resource for computer system dynamically adjusts, it is characterized in that: described method is by start-up course, I/O device resources requirement in system is scanned, and judge whether the distribution of current system resource meets I/O device resources requirement, if being unsatisfactory for, then the method for dynamic adjustresources allocation proportion.

2. the method that a kind of resource for computer system according to claim 1 dynamically adjusts, it is characterised in that described method operating procedure is as follows:

3. the method that a kind of resource for computer system according to claim 2 dynamically adjusts, it is characterised in that described method specific operation process is as follows:

Preset ratio is a:b:c:d ..., wherein a+b+c+d ...=y,

CPU0/1/2/3 ... stock number respectively a*X/y, b*X/y, c*X/y, d*X/y ...;

If satisfying condition, then normally starting, not doing resource adjustment;

If the condition of being unsatisfactory for, then calculate new demand percentage e:f:g:h ..., wherein e+f+g+h ...=y; This ratio is replaced the preset ratio in storage medium, and computer system is carried out reboot operation;

In restarting process, system resource is when processor initializes, according to new demand percentage e:f:g:h ... system resource is allocated; So, when IO initializes, will show that Current resource allocation proportion meets I/O device resource requirement, then normally start.