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    SubjectRe: [RFC][PATCH 00/11] perf pmu interface -v2
    On Wed, 2010-06-30 at 10:19 -0700, Corey Ashford wrote:
    > However, there still are concerns relative to writing these control
    > registers from an interrupt handler because of the latency that will be
    > incurred, however slow we choose to do the event rotation. So at least
    > for the Wire-Speed processor, we may need a worker thread of some sort
    > to hand off the work to.

    Right, once we have per-pmu contexts we can look at having means to
    over-ride the means of rotation, such that the pmu can optionally drive
    it itself instead of through the common tick.

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      Last update: 2010-06-30 20:13    [W:1.059 / U:19.696 seconds]
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