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    SubjectRe: sched_clock() uses are broken
    Mike Galbraith wrote:
    > On Wed, 2006-05-03 at 03:07 +1000, Nick Piggin wrote:
    >
    >>Other problem is that some people didn't RTFM and have started trying to
    >>use it for precise accounting :(
    >
    >
    > Are you talking about me perchance? I don't really care about precision
    > _that_ much, though I certainly do want to tighten timeslice accounting.

    No, sched_clock is fine to be used in CPU scheduling choices, which are
    heuristic anyway (although strictly speaking, even using it for timeslicing
    within a single CPU could cause slight unfairness).

    I'm talking about the update_cpu_clock() / task_struct->sched_time stuff.

    --
    SUSE Labs, Novell Inc.
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