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Method of contention mitigation for operational applications, method of determining related stress applications, and computer program product

A technology for operating applications and determining methods, applied in the directions of computing, multi-programming devices, program control design, etc., and can solve problems such as a priori causing large problems

Inactive Publication Date: 2021-11-19
THALES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The specific architecture of the core also makes it possible to limit contention, however, like the previous case, it also has its physical limitations
[0010] Therefore, in highly critical environments where determinism is essential, the use of a multi-master architecture a priori poses major problems in its use

Method used

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  • Method of contention mitigation for operational applications, method of determining related stress applications, and computer program product
  • Method of contention mitigation for operational applications, method of determining related stress applications, and computer program product

Examples

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Embodiment Construction

[0035] actually in figure 1 An example of an airborne platform 10 is shown in .

[0036] Such an airborne platform 10 has, for example, critical systems, especially critical avionics systems. Thus, in this latter case, airborne platform 10 is configured to perform one or more avionics tasks.

[0037] In all cases, the airborne platform 10 is designed to operate in a specific field of use. Thus, the domain defines the platform's architecture and at least some of the operational characteristics of the platform's components. In this case, the operation of the platform 10 corresponds to its nominal operation.

[0038] refer to figure 1 , the airborne platform includes N cores 12-1, ..., 12-N, M shared resources 14-1, ..., 14-M, and one or more arbitration stages 15 between cores and resources, numbers M and N is strictly greater than 1.

[0039] Each core 12-1, . . . , 12-N may also be called a processor or host, which is known per se. In particular, each core 12-1, ..., 12...

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Abstract

The invention relates to a method of contention mitigation for operational applications, a method of determining related stress applications, and a computer program product. The present invention relates to a method (200) of contentions mitigation for an operational application implemented by an embedded platform comprising a plurality of cores and a plurality of shared resources. This method comprises the steps of executing (210) the operational application by one of the cores of the embedded platform, executing (220) a stress application on at least some other cores of the embedded platform in parallel with the operational application, the stress application being composed of a set of contention tasks generating a maximum contention on interference channels, and determining (230) contentions generated by the stress application on the operational application.

Description

【Technical field】 [0001] The present invention relates to a contention mitigation method for application operations. [0002] The invention also relates to a determination method and a computer program product of application stressantes associated with such a mitigation method. [0003] The invention is particularly applicable in the field of airborne multi-master platforms, such as may be used in the field of avionics. 【Background technique】 [0004] In a manner known per se, such a multi-host platform comprises a plurality of cores and a plurality of shared resources, each core being able to execute at least one application using one or more shared resources. [0005] In such platforms, use of shared resources may cause conflicts related to concurrent access by individual cores. These conflicts typically manifest as uncontrolled process run durations. This then makes it impossible to predict the operation of the platform in a deterministic manner, which makes it impossi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/50
CPCG06F9/5027H04L67/12G06F9/526
Inventor 皮埃里克·拉穆尔马克·富美
Owner THALES SA
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