Stopping central processing units for data collection based on event categories of events

• US 10,606,714 B2
• Filed: 09/05/2017
• Issued: 03/31/2020
• Est. Priority Date: 09/05/2017
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Carson, Matthew D., Nguyen, Trung N., Rasor, Louis A., Sorenson, Todd C.
• Primary Examiner(s): Kessler, Gregory A
• Application Number:
  US15/695,490
• Publication Number:
  US 20190073280A1
• Time in Patent Office: 938 Days
• Field of Search: None
• CPC Class Codes: G06F 11/0778 Dumping, i.e. gathering error/state information after a fault for later diagnosis
• CPC Class Codes: G06F 11/2007 using redundant communication media
• CPC Class Codes: G06F 11/3476 Data logging G06F11/14, G06F11/2205 take precedence
• CPC Class Codes: G06F 2201/86 Event-based monitoring
• CPC Class Codes: G06F 9/485 Task life-cycle, e.g. stopping, restarting, resuming execution G06F9/4881 takes precedence
• CPC Class Codes: G06F 9/4881 Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
• CPC Class Codes: G06F 9/54 Interprogram communication
• CPC Class Codes: H04L 41/065 involving logical or physical relationship, e.g. grouping and hierarchies
• CPC Class Codes: H04L 41/0661 by reconfiguring faulty entities
• CPC Class Codes: H04L 41/069 using logs of notifications; Post-processing of notifications
• CPC Class Codes: H04L 43/0817 by checking functioning

Abstract

A plurality of tasks are executed on a plurality of central processing units (CPUs) of a computational device. In response to an occurrence of an event in the computational device, one or more CPUs that are executing tasks associated with an event category to which the event belongs are stopped within a first predetermined amount of time. In response to stopping the one or more CPUs, a data set indicative of a state of the computational device is collected, for at most a second predetermined amount of time.

Claims

1. A method, comprising:

executing, a plurality of tasks on a plurality of central processing units (CPUs) of a computational device;

in response to an occurrence of an event in the computational device, stopping one or more CPUs that are executing tasks associated with an event category to which the event belongs, within a first predetermined amount of time; and

in response to stopping the one or more CPUs, collecting a data set indicative of a state of the computational device, for at most a second predetermined amount of time, wherein the tasks associated with the event category have to be completed within a third predetermined amount of time, and wherein the first predetermined amount of time and the second predetermined amount of time are set such the tasks associated with the event category are completed within the third predetermined amount of time.

4. The method of claim 1, wherein the one or more CPUs that are stopped are fewer in number than the plurality of CPUs, wherein one or more other CPUs of the plurality of CPUs that are not executing tasks associated with an event category continue performing operations while the one or more CPUs are stopped, and wherein different data sets are collected for different types of tasks with different time requirements.

5. The method of claim 1, wherein selected tasks of the plurality of tasks are indicated as not participating in collection of data sets at a time of creation of the selected tasks, and wherein if a CPU is executing any of the selected tasks, then the CPU is not stopped.

2. A method, comprising:

executing, a plurality of tasks on a plurality of central processing units (CPUs) of a computational device;

in response to an occurrence of an event in the computational device, stopping one or more CPUs that are executing tasks associated with an event category to which the event belongs, within a first predetermined amount of time;

in response to stopping the one or more CPUs, collecting a data set indicative of a state of the computational device, for at most a second predetermined amount of time; and

in response to completion of the collecting of the data set, resuming operations of the one or more CPUs, wherein properties associated with the event category include;

a category identifier for the event category, wherein the category identifier identifies the event category;

a list of tasks, wherein the list of tasks indicates the tasks to stop for the event category, in response to the occurrence on an event belonging to the event category;

a stop time that indicates an amount of time within which CPUs executing tasks in the list of tasks are to be stopped;

a data set collection time that indicates an amount of time within which a data set indicative of a state of the computational device is to be collected after stopping the CPUs executing the tasks in the list of tasks; and

a data set collection mechanism comprising a function that when executed causes the data set to be collected.

3. The method of claim 2, wherein each event of a plurality of events are associated with a category identifier that indicates the event category to which the event belongs.

6. A system, comprising:

a memory; and

a plurality of central processing units (CPUs) coupled to the memory, wherein the system performs operations, the operations comprising;

executing, a plurality of tasks on the plurality of CPUs;

in response to an occurrence of an event in the system, stopping one or more CPUs that are executing tasks associated with an event category to which the event belongs, within a first predetermined amount of time; and

in response to stopping the one or more CPUs in the system, collecting a data set indicative of a state of the system, for at most a second predetermined amount of time, wherein the tasks associated with the event category have to be completed within a third predetermined amount of time, and wherein the first predetermined amount of time and the second predetermined amount of time are set such the tasks associated with the event category are completed within the third predetermined amount of time.

9. The system of claim 6, wherein the one or more CPUs that are stopped are fewer in number than the plurality of CPUs, wherein one or more other CPUs of the plurality of CPUs that are not executing tasks associated with an event category continue performing operations while the one or more CPUs are stopped, and wherein different data sets are collected for different types of tasks with different time requirements.

10. The system of claim 6, wherein selected tasks of the plurality of tasks are indicated as not participating in collection of data sets at a time of creation of the selected tasks, and wherein if a CPU is executing any of the selected tasks, then the CPU is not stopped.

7. A system, comprising:

a memory; and

a plurality of central processing units (CPUs) coupled to the memory, wherein the system performs operations, the operations comprising;

executing, a plurality of tasks on the plurality of CPUs;

in response to an occurrence of an event in the system, stopping one or more CPUs that are executing tasks associated with an event category to which the event belongs, within a first predetermined amount of time;

in response to stopping the one or more CPUs in the system, collecting a data set indicative of a state of the system, for at most a second predetermined amount of time; and

in response to completion of the collecting of the data set, resuming operations of the one or more CPUs, wherein properties associated with the event category include;

a category identifier for the event category, wherein the category identifier identifies the event category;

a list of tasks, wherein the list of tasks indicates the tasks to stop for the event category, in response to the occurrence on an event belonging to the event category;

a stop time that indicates an amount of time within which CPUs executing tasks in the list of tasks are to be stopped;

a data set collection time that indicates an amount of time within which a data set indicative of a state of the system is to be collected after stopping the CPUs executing the tasks in the list of tasks; and

a data set collection mechanism comprising a function that when executed causes the data set to be collected.

8. The system of claim 7, wherein each event of a plurality of events are associated with a category identifier that indicates the event category to which the event belongs.

11. A computer program product, the computer program product comprising a computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code configured to perform operations on a computational device, the operations comprising:

executing, a plurality of tasks on a plurality of central processing units (CPUs) of the computational device;

in response to an occurrence of an event in the computational device, stopping one or more CPUs that are executing tasks associated with an event category to which the event belongs, within a first predetermined amount of time; and

in response to stopping the one or more CPUs, collecting a data set indicative of a state of the computational device, for at most a second predetermined amount of time, wherein the tasks associated with the event category have to be completed within a third predetermined amount of time, and wherein the first predetermined amount of time and the second predetermined amount of time are set such the tasks associated with the event category are completed within the third predetermined amount of time.

14. The computer program product of claim 11, wherein the one or more CPUs that are stopped are fewer in number than the plurality of CPUs, wherein one or more other CPUs of the plurality of CPUs that are not executing tasks associated with an event category continue performing operations while the one or more CPUs are stopped, and wherein different data sets are collected for different types of tasks with different time requirements.

15. The computer program product of claim 11, wherein selected tasks of the plurality of tasks are indicated as not participating in collection of data sets at a time of creation of the selected tasks, and wherein if a CPU is executing any of the selected tasks, then the CPU is not stopped.

12. A computer program product, the computer program product comprising a computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code configured to perform operations on a computational device, the operations comprising:

executing, a plurality of tasks on a plurality of central processing units (CPUs) of the computational device;

in response to an occurrence of an event in the computational device, stopping one or more CPUs that are executing tasks associated with an event category to which the event belongs, within a first predetermined amount of time;

in response to stopping the one or more CPUs, collecting a data set indicative of a state of the computational device, for at most a second predetermined amount of time; and

in response to completion of the collecting of the data set, resuming operations of the one or more CPUs, wherein properties associated with the event category include;

a category identifier for the event category, wherein the category identifier identifies the event category;

a list of tasks, wherein the list of tasks indicates the tasks to stop for the event category, in response to the occurrence on an event belonging to the event category;

a stop time that indicates an amount of time within which CPUs executing tasks in the list of tasks are to be stopped;

a data set collection time that indicates an amount of time within which a data set indicative of a state of the computational device is to be collected after stopping the CPUs executing the tasks in the list of tasks; and

a data set collection mechanism comprising a function that when executed causes the data set to be collected.

13. The computer program product of claim 12, wherein each event of a plurality of events are associated with a category identifier that indicates the event category to which the event belongs.