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  • TI Thinks Resolved

AM6528: 6 port PRU Ethernet performance

Genius 11825 points
Lawrence Wong

Replies: 3

Views: 207

Part Number: AM6528

Customer is inquiring about the effective data throughput and latency of the PRU Ethernet when operating in a switch-like application where data coming in from Ethernet port and out another Ethernet port, localizing the data traffic.  Low latency and high throughput are key metrics

Regards,

Lawrence

Genius 11825 points
Lawrence Wong
  • Mastermind 25130 points
    Nick Saulnier

    Hello Lawrence,

    We have not added PRU Ethernet switch support for AM65x as of Processor Linux SDK 5.3. If the customer wants a specific use case/cases tested, let me know so I can make sure it gets recorded.

    Regards,
    Nick

  • Genius 11825 points
    Lawrence Wong

    In reply to Nick Saulnier:

    Nick,

    The critical metric they are looking for are related to throughput and data latency from one port to another.  Is there a way to get me some numbers quickly to help the customer in their decision process?

    Regards,

    Lawrrence. 

  • Mastermind 25130 points
    Nick Saulnier

    In reply to Lawrence Wong:

    Hello Lawrence,

    Right now, all we have is dual EMAC functionality (i.e. each ICSSG can support two Ethernet ports, with one PRU & RTU being assigned to each port. Ethernet traffic goes from the Ethernet port to the ARM). At this point in time, there is no switch code that I would be able to test in order to get numbers.

    I will record that customers want data throughput and data latency tested when the switch code is eventually written. However, at this point in time I cannot guarantee a timeline for when switch functionality will be added.

    Regards,
    Nick

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