Systems and methods for monitor distribution in a multi-core system

• US 8,886,801 B2
• Filed: 07/29/2013
• Issued: 11/11/2014
• Est. Priority Date: 06/22/2009
• Status: Active Grant

• Current Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Original Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Inventors: Muthiah, Manikam, Narayana, Raghav Somanahalli, Degaonkar, Sumedh
• Primary Examiner(s): Golabbakhsh, Ebrahim
• Application Number:
  US13/953,262
• Publication Number:
  US 20130315070A1
• Time in Patent Office: 470 Days
• Field of Search: 709/201, 709/224, 709/226
• US Class Current: 709/224
• CPC Class Codes: G06F 9/505 considering the load
• CPC Class Codes: G06F 9/5055 considering software capabilities, i.e. software resources associated or available to the machine
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor
• CPC Class Codes: H04L 43/0817 by checking functioning
• CPC Class Codes: H04L 43/0864 Round trip delays
• CPC Class Codes: H04L 43/0876 Network utilisation, e.g. volume of load or congestion level
• CPC Class Codes: H04L 43/12 Network monitoring probes

Abstract

The present invention is directed towards systems and methods for monitoring services in a multi-core system. The systems and methods distribute the monitors for a service and the ownership of a service across the cores of the multi-core device. The greater resources of the multi-core device process the workload of the monitors for the services and the workload for monitoring the states of the services more efficiently than a single packet engine on a core.

Claims

1. A method of establishing monitors in a device comprising a plurality of cores, the method comprising:

a) identifying, by a device comprising a plurality of cores, via a configuration of the device a name of a monitor and a name of a service that the monitor is to monitor, the service in communication with and managed by the device;

b) computing, by the device, a function of a number of cores in the device and the name of the monitor and the name of the service in the configuration, the function providing a computed value for the monitor; and

c) determining, by a core of the plurality of cores, whether that core is to establish the monitor for the service based on a comparison of the computed value to a value assigned to the core.

2. The method of claim 1, wherein step (a) further comprises identifying, by the device, via the configuration of the device the name of each monitor of a plurality of monitors and the name of the service that each monitor is to monitor.

3. The method of claim 2, further comprising each core computing the function for each monitor and determining whether that core is to establish one or more monitors of the plurality monitors based on comparing each monitor'"'"'s computed value to the value assigned to that core.

4. The method of claim 1, wherein step (b) further comprises computing, by the device, the function using values of characters contained in each of the name of the monitor and the name of the service.

5. The method of claim 1, wherein step (b) further comprises computing, by the device, the function as a result of a first function of the name of the monitor and the name of the service in the configuration divided by the number of cores in the device.

6. The method of claim 1, wherein step (c) further comprises determining, by the core, that the computed value of the monitor equals the value assigned to the core comprising an identifier of the core.

7. The method of claim 1, wherein step (c) further comprises using, by the core, the computed value as an index into a table identifying cores.

8. The method of claim 1, further comprising determining, by the core responsive to the comparison, that the core is to establish the monitor and response to the determination, establishing the monitor.

9. The method of claim 8, further comprising setting by the core a status of the monitor to indicate probes for the monitor can be scheduled.

10. The method of claim 9, further comprising sending, by the core, a probe for the monitor according to a schedule.

11. A system of establishing monitors in a device comprising a plurality of cores, the method comprising:

a device comprising a plurality of cores;

a configuration of the device comprising a name of a monitor and a name of a service that the monitor is to monitor, wherein the service in communication with and managed by the device;

wherein a core of the plurality of cores is configured to compute a function of a number of cores in the device and the name of the monitor and the name of the service in the configuration, the function providing a computed value for the monitor, and

wherein the core is configured to determine whether that core is to establish the monitor for the service based on a comparison of the computed value to a value assigned to the core.

12. The system of claim 11, wherein the device is configured to identify via the configuration the name of each monitor of a plurality of monitors and the name of the service that each monitor is to monitor.

13. The system of claim 12, wherein each core of the plurality of cores is configured to compute the function for each monitor and determine whether that core is to establish one or more monitors of the plurality monitors based on comparing each monitor'"'"'s computed value to the value assigned to that core.

14. The system of claim 11, wherein the function is computed using values of characters contained in each of the name of the monitor and the name of the service.

15. The system of claim 11, wherein the function comprises a result of a first function of the name of the monitor and the name of the service in the configuration divided by the number of cores in the device.

16. The system of claim 11, wherein the core is configured to determine that the computed value of the monitor equals the value assigned to the core comprising an identifier of the core.

17. The system of claim 11, wherein the core is configured to use the computed value as an index into a table identifying cores.

18. The system of claim 11, the core, responsive to the comparison, is configured to determine that the core is to establish the monitor and responsive to the determination, to establish the monitor.

19. The system of claim 18, wherein the core is configured to set a status of the monitor to indicate probes for the monitor can be scheduled.

20. The system of claim 19, wherein the core is configured to send a probe for the monitor according to a schedule.