Cyclictest performance degradation on AM62x/AM64x/AM62A

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    • Type: Bug
    • Resolution: Fixed
    • Priority: High
    • Linux Core SDK
    • LCPD-44097
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      10.00 11.00 10.01
    • 11.02
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      am62axx_sk-fs am62axx_sk-se am62xx_sk-fs am62xx_sk-se am64xx-evm am64xx-hsevm am64xx_evm-se am64xx_sk-fs am64xx_sk-se

      The worst-case cyclictest latency numbers have been increasing with each SDK release. The degradation is observed on SDK 10.0, 10.1, and 11.0 on AM64x and AM62x. 

      EX:

      AM64x saw worst-case latency got from 60us in SDK 09.02.01.10 to 105us in SDK 11.0.

      AM62x saw worst-case latency go from 63us in SDK 09.02.01.10 to 73us in SDK 11.0 (see below)

      SDK 11.0: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/latest/exports/docs/devices/AM62X/linux/RT_Linux_Performance_Guide.html

      SDK 9.2: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/09_02_01_10/exports/docs/devices/AM62X/linux/RT_Linux_Performance_Guide.html 

      For AM62A there is a degradation observed on SDK 10.1 compared to SDK 9.2

      AM62P actually observed an improvement in latency values from 37us in SDK 09.02.01.10 to 35us in SDK 11.0

            Assignee:
            TI User
            Reporter:
            TI User
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              Created:
              Updated:
              Resolved:

                Connection: Intermediate to External PROD System
                EXTSYNC-5807 - Cyclictest performance degradation ...
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