公开(公告)号：US10853279B2

公开(公告)日：2020-12-01

申请号：US16577543

申请日：2019-09-20

Applicant: THALES

Inventor： Pierrick Lamour ,  Alexandre Fine

IPC: G06F13/40 ,  G06F3/06 ,  G06F13/16

Abstract: The invention relates to a system for accessing a shared resource belonging to a hardware platform comprising a plurality of master processing units, each master processing unit being able to exploit a shared resource during an execution of a process, each shared resource having an associated maximum bandwidth. For at least one shared resource, the system includes a counter of a number of data transfers between said master processing unit and said shared resource, and a comparator suitable for comparing the number of transfers to a bandwidth limit, which is a fraction of said maximum bandwidth, associated with said shared resource, and a pacing unit suitable for resetting each counter after a time period of predetermined duration has elapsed. The access system is suitable for commanding, once said number of transfers associated with a master processing unit has reached said bandwidth limit, a suspension of the exploitation of said shared resource by said master processing unit, and a resumption of the exploitation once each counter has been reset.

公开(公告)号：US11803427B2

公开(公告)日：2023-10-31

申请号：US17318777

申请日：2021-05-12

Applicant: THALES

Inventor： Pierrick Lamour ,  Marc Fumey

IPC: G06F9/46 ,  G06F9/52

CPC classification number: G06F9/526

Abstract: The present invention relates to a method 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 the operational application by one of the cores of the embedded platform, executing a stressor application on at least some other cores of the embedded platform in parallel with the operational application, the stressor application being composed of a set of contention tasks generating a maximum contention on interference channels, and determining contentions generated by the stressor application on the operational application.

公开(公告)号：US11256545B2

公开(公告)日：2022-02-22

申请号：US16838808

申请日：2020-04-02

Applicant: THALES

Inventor： Pierrick Lamour ,  Alexandre Fine

IPC: G06F9/50 ,  G06F13/12 ,  G06F13/16 ,  G06F13/362 ,  G06F13/40

Abstract: This system on chip comprises a plurality of master resources, a plurality of slave resources, a plurality of arbitration levels, each arbitration level being able to control the access of at least one master resource to at least one slave resource, each master resource being able to send requests to at least one slave resource according to a bandwidth associated with this slave resource and this master resource.
The system is characterized by further comprising control means configured to control each bandwidth associated with each slave resource as a function of the capacity of this slave resource to process the requests originating from the master resource corresponding to this bandwidth.