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    SubjectRe: [linux-pm] [PATCH 0/8] Suspend block api (version 8)
    ext Felipe Contreras wrote:

    > I think this information can be obtained dynamically while the
    > application is running,

    yes, that was the idea

    > and perhaps the limits can be stored. It would
    > be pretty difficult for the applications to give this kind of
    > information because there are so many variables.
    >
    > For example, an media player can tell you: this clip has 24 fps, but
    > if the user is moving the time slider, the fps would increase and drop
    > very rapidly, and how much depends at least on the container format
    > and type of seek.
    >

    I doubt that belongs to typical QoS. Maybe the target could be to be
    able to decode a sequence of i-frames?
    > A game or a telephony app could tell you "I need real-time priority"
    > but so much as giving the details of latency and bandwidth? I find
    > that very unlikely.
    >

    from my gaming days the games were still evaluated in fps ... maybe i
    made the wrong assumption?

    A telephony app should still be able to tell if it's dropping audio frames.

    In all cases there should be some device independent limit - like: what
    is the sort of degradation that is considered acceptable by the typical
    user?

    Tuning might be offered, but at least this should set some sane set of
    defaults.

    igor


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