JPH0568726B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a system parameter control method in an information processing system, and in particular to a method for automatically changing the contents of system parameters actually used in the system according to a prespecified schedule. This invention relates to a method for processing changes in system parameters over time.

[Conventional technology]

Generally, OS (operating system)
System parameters that define the management and control functions of the information processing system (for example, parameters that determine the number of jobs that can be executed simultaneously) are parameters that are set in the system table at the time of system creation or system startup, and are parameters that operate within the information processing system. The system control routine performs system control by referring to the system parameters in this system table.

Conventionally, a method using an operator command is known as a method for dynamically changing such system parameters during system operation.

[Problem that the invention seeks to solve]

By the way, in a system in which system load fluctuations can be predicted, it is desirable to change system parameters related to system performance during system operation according to a schedule based on the prediction in order to improve system efficiency. Even in the past,
Although it is possible to dynamically change system parameters related to system performance during system operation using operator commands, changing them using operator commands requires a dedicated operator and is labor intensive. There is a risk of erroneous changes due to mistakes, and there is also a problem that there is no guarantee that changes will be made as scheduled.

The present invention has been made in view of the above circumstances, and its purpose is to automatically change the contents of system parameters currently used in the system during system operation according to a pre-specified schedule. It's about doing.

[Means for solving problems]

In order to achieve the above object, the present invention stores system parameters, which are parameters that define OS management and control functions, in a system table, and performs system control according to the system parameters in the system table. A method for temporally changing system parameters in an information processing system that includes a plurality of system parameter tables, and a system parameter table that holds schedule information for temporally selectively switching between the plurality of system parameter tables. Sequentially selecting the plurality of system parameter tables according to schedule information registered in the change parameter table and the system parameter temporal change parameter table, and selecting the system parameter table equal to the content of the system parameter specified in the selected system parameter table. and means for changing the contents of the system parameters in the system table during system operation.

[Effect]

By making the contents of multiple system parameter tables different and specifying the schedule for selecting these multiple system parameter tables using the schedule information in the system parameter temporal change parameter table, you can change the schedule. Therefore, system parameters in the system table can be automatically changed during system operation.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram of an information processing system to which a system parameter temporal change processing method according to an embodiment of the present invention is applied. Contains 3.

The virtual memory 1 is a system area, and includes a plurality of system parameter tables 11A to 11C,
System table 12, multiple types of system control routines 13A to 13X, and multiple system parameter temporal change parameter tables 19A to 1
9C, system parameter temporal dynamic change processing routine 15, system parameter temporal change initialization routine 16, and interval timer 18.
is provided.

The system table 12 includes a system control table 121 used by various system control routines 13A to 13X to control the system, and a dynamic parameter control table 122.
The system control table 12 is a target system table 12 in which the current system target values are stored.
The dynamic parameter control table 122 includes a pointer 1221 indicating the current system table, a pointer 1222 indicating the next system table, and a current system control table 1212 in which the current system control state is stored. A parameter dynamic change information table 1223 is included. Furthermore, the system parameter dynamic change information table 1223 includes all-period dynamic change information 12.
331 and next cycle dynamic change information 12332 are included.

System parameters 17A to 17C are system parameters specified by the user, and system parameter time change parameters 14A to 14C.
is a parameter that defines schedule information defined by the user. Various formats are possible for the system parameter time change parameters 14A to 14C, but in this embodiment, each of them has a change time parameter 14A1 to 14C1 and a change parameter number 14A2 to 14C2. Specify the time (or time) to change, and change parameter number 14A
2 to 14 The parameters to be changed are specified in C2. For convenience of explanation below, in the system parameter temporal change parameter 14A, the change time parameter 14A1 indicates the time T1, the change parameter number 14A2 indicates the system parameter 17B, and in the system parameter temporal change parameter 14B, the change time parameter 14B1
indicates time T2 and changes parameter number 14B
2 indicates the system parameter 17C, and in the system parameter temporal change parameter 14C, the change time parameter 14C1 indicates time T3, and the change parameter number 14C2 indicates the system parameter 17A. This means that the system is controlled according to system parameter 17A at the time of system startup, then changed to system control according to system parameter 17B around time T1, and then changed to system control according to system parameter 17C around time T2. This corresponds to the case where the control is changed to the system control and then the system control is changed again to the system control according to the system parameter 17A around time T3.

FIG. 2 is a flow chart of a processing example of the system parameter temporal change initialization routine 16, and the system table creation step 21 after system startup.
and a timer setting step 22 for notifying an event of the next cycle system parameter temporal change. Further, FIG. 3 shows the process that the system parameter temporal dynamic change processing routine 15 performs when it receives a notification of the next periodic system parameter dynamic change or a notification of the next system parameter temporal change due to the end of the interval timer 18. This is an example flowchart, which includes a step 31 for updating the target system table, a step 32 for determining the end of dynamic change processing for all cycles of system parameters, a step 33 for setting a timer for event notification of the dynamic change of system parameters for the next cycle, and a step 33 for setting the next system parameter. It consists of a time change step 34 and a timer set step 35 for notifying an event of the next system parameter time change.

Next, the operation of the system parameter temporal change processing method of this embodiment configured as described above will be explained.

First, the user uses the input device 3 shown in FIG.
A to 11C, and set the system parameter temporal change parameters 14A to 14C in the system parameter temporal change parameter table 19.
Set from A to 19C.

At system start-up, the system parameter temporal change initialization routine 16, as shown in FIG.
System parameter temporal change parameter table 19 storing system parameter temporal change parameters 14A to 14C specified by the user
System parameter temporal change parameter table 19A that is previously specified or separately instructed to be used at startup among A to 19C
At the same time, the system parameter table 11A, which is preset as an initial value or separately specified, is selected as an initial value from among the system parameter tables 11A to 11C that store a plurality of system parameters 17A to 17C specified by the user. , initializes the target system table 1211 of the system control table 121 according to its contents, sets the address of the system parameter table 11A to the current system table pointer 1221 of the dynamic parameter control table 122, and clears the next system table pointer 1222. . Also, change parameter number 14A in the system parameter temporal change parameter table 19A.
The contents of the next changed system parameter table 11B instructed in step 2 are compared with the contents of the current system parameter table 11A to obtain all-cycle dynamic change information and next-cycle dynamic change information. Here, the all-period dynamic change information is information indicating what contents of the current system parameter table 11A are to be finally changed. Also, set the system parameters at a certain point in time (time T1 in this example).
Since it is not desirable to change the content to the final value all at once, a method is adopted in which the content is changed gradually before or after time T1 so that the final changed value is reached around time T1. At this time, the above-mentioned next cycle dynamic change information is information indicating what kind of content is to be changed and to what extent in the next cycle system parameter dynamic change event process. The above-mentioned all-cycle dynamic change information and next-cycle dynamic change information are set in the system parameter dynamic change information table 1223 as all-cycle dynamic change information 12331 and next-cycle dynamic change information 12332.

After the system parameter temporal change initialization routine 16 finishes setting the all-cycle dynamic change information 12331 and the next-cycle dynamic change information 12332, it sets the address of the next system parameter table 11B in the next system table pointer 1222. The above processing is performed in step 21.

Next, the system parameter temporal change initialization routine 16 sets the interval timer 18 to notify an event of the next periodic system parameter dynamic change (step 22), and ends the process.

After system startup, various system control routines 13A to 13X store the current system status in the current system control table 1212 of the system control table 121, and store the current system status in the target system table 121.
The current system is controlled according to the system parameters registered in 1 (system parameters 11A in this case).

When the system parameter temporal dynamic change processing routine 15 receives notification of the next periodic system parameter dynamic change by ending the interval timer 18, the system parameter dynamic change information table 1223 is updated as shown in FIG. The target system table 1211 is updated with reference to the periodic dynamic change information 12332 (step 31). Next, whether or not the final dynamic change process has been completed by changing the target system table 1211 is checked based on the contents of the full cycle dynamic change information 12331 in the system parameter dynamic change information table 1223 (step 32). ). If all the change processing has not been completed, the dynamic parameter control table 122
System parameter dynamic change information table 12
23, the next period dynamic change information 12232 necessary for changing the target system table 1211 in the next period system parameter dynamic change event processing is set, and the interval timer 18 is set for event notification of the next period system parameter dynamic change. is set (step 33), and the process ends.

On the other hand, the next cycle dynamic change information 123 as described above
If the final change processing is not completed around time T1 due to several modifications of the target system table 1211 using 32, the address of the system parameter table 11B is set to the current system table pointer 1221, and the next system The change time parameter 14B1 and the change parameter number 14B2 are taken out from the parameter time change parameter table 19B, and the change parameter number 14B is
System parameter table 11 indicated in 2
Contents of C and current system parameter table 11B
, to obtain all-cycle dynamic change information and next-cycle dynamic change information, and add this to the system parameter dynamic change information table 1223 as all-cycle dynamic change information 12331 and next-cycle dynamic change information 1233.
2, and the next system parameter table 1 is set to the next system table pointer 1222.
1C address is set (step 34). Then, in order to notify the next system parameter dynamic change event, the interval timer 18 is activated.
is set (step 35), and the process ends.

When the interval timer 18 ends and the event notification of the next system parameter temporal change is performed, steps 31 to 34 are repeated again, and the contents of the target system table 1211 are finally changed to the system parameter table 11C around time T2. The content will be changed to . Similarly, the next system parameter temporal change parameter table 19C and system parameter tables 11C and 11A, therefore, around time T3,
The target system table 1211 is changed to the contents of the system parameter table 11A.

〔Effect of the invention〕

As explained above, the present invention includes a plurality of system parameter tables, a system parameter temporal change parameter table that holds schedule information for temporally selecting and switching the plurality of system parameter tables, and a system The plurality of system parameter tables are sequentially selected according to the schedule information registered in the parameter temporal change parameter table, and the contents of the system parameters are changed in the system table so that the contents are equal to the contents of the system parameters specified in the selected system parameter table. Since the system is equipped with a means for changing the contents of system parameters during system operation, system parameters corresponding to each load situation can be registered in each system parameter table, and schedule information corresponding to load fluctuations can be changed at system parameter time. By registering parameters in the target change parameter table, it is possible to control the system with system parameters that match the system operation status at each point in time without operator intervention, enabling efficient system operation. There is a certain effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an information processing system to which an embodiment of the present invention is applied, FIG. 2 is a flow chart of a processing example of the system parameter temporal change initialization routine 16, and FIG. 3 is a flowchart of a processing example of a change processing routine 15; In the figure, 1...Virtual memory, 2...Central processing unit, 3...Input device, 11A to 11C...System parameter table, 12...System table, 1211...Target system table, 14
A to 14C... System parameter temporal change parameter, 15... System parameter temporal dynamic change processing routine, 16... System parameter temporal change initialization routine, 17A to 17C...
...System parameters, 18...Interval timer, 19A-19C...System parameter temporal change parameter table.

Claims (1)

[Claims] 1. In an information processing system in which system parameters, which are parameters that define management functions and control functions of an OS, are held in a system table, and the system is controlled according to the system parameters in the system table. A system parameter temporal change processing method comprising: a plurality of system parameter tables; a system parameter temporal change parameter table that holds schedule information for temporally selecting and switching the plurality of system parameter tables; Sequentially selecting the plurality of system parameter tables according to schedule information registered in the system parameter temporal change parameter table, and adjusting the system parameter table so that the content of the system parameter is equal to the content of the system parameter specified in the selected system parameter table. 1. A system parameter temporal change processing method comprising: means for changing the contents of system parameters in a system table during system operation.