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[BUG] MTL: multiple-pause-resume.sh takes 10 times longer with _NOCODEC #8174

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[BUG] MTL: multiple-pause-resume.sh takes 10 times longer with _NOCODEC#8174
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MTLApplies to Meteor Lake platformbugSomething isn't working as expected

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@marc-hb
marc-hb
opened on Sep 7, 2023

MTLP_RVP_NOCODEC takes TEN times longer (!) to run multiple-pause-resume-50.sh than MTLP_RVP_SDW or MTLP_RVP_HDA

All tests seem slower on _NOCODEC but multiple-pause-resume-50.sh is especially slower.

This is "bottlenecking" and slowing down the entire validation.

Examples:

https://sof-ci.01.org/linuxpr/PR4577/build6527/devicetest/index.html
multiple-pause-resume-50.sh
MTLP_RVP_NOCODEC: 30 minutes
MTLP_RVP_SDW, MTLP_RVP_HDA: 3 minutes

Same in https://sof-ci.01.org/sofpr/PR8161/build12679/devicetest/index.html
and in every mtl_pr test run I've looked at in the last few days.

Activity

  1. marc-hb
    added
    bugSomething isn't working as expected
    MTLApplies to Meteor Lake platform
    on Sep 7, 2023

  2. singalsu commented on Sep 7, 2023

    @singalsu
    singalsu
    on Sep 7, 2023
    Collaborator

    So average 36s vs. 3.6s per suspend-resume cycle, that's a big difference!

  3. marc-hb commented on Sep 7, 2023

    @marc-hb
    marc-hb
    on Sep 7, 2023
    CollaboratorAuthor

    Thanks @plbossart :

    The answer is in the topology: there are just more PCM devices in the
    nocodec topology and the script blindly tests them all. In theory the
    test duration should be a linear factor of the number of PCM devices,
    but that could be impacted by firmware transitions since some PCM
    devices go into mixers and pipelines are activated with a refcount.

  4. marc-hb
    closed this as completedon Sep 7, 2023
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