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    SubjectRe: [RFC][PATCH] new timeofday core subsystem (v. A2)
    john stultz wrote:
    > Interesting patch. Indeed, the trade off is just how quickly you want to
    > boot vs how much drift you gain each suspend/resume cycle. Assuming all
    > of the clocks are good, your patch could introduce up to 2 seconds of
    > drift each suspend/resume cycle.

    If we're not writing to the RTC on suspend, then I believe the drift is
    capped. For some consumer products, 2 seconds of drift is OK.

    Nigel, does the RTC get written to, or just read, on suspend?

    Also, I'm worried about the clock appearing to run backwards over a suspend.
    Unless a suspend/resume cycle took less than 1 second, I don't think this could
    happen. Is that right?

    =============================
    Tim Bird
    Architecture Group Chair, CE Linux Forum
    Senior Staff Engineer, Sony Electronics
    =============================
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