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    SubjectRe: [PATCH RFC] smt nice introduces significant lock contention
    Date
    On Friday 02 June 2006 19:53, Chen, Kenneth W wrote:
    > Yeah, but that is the worst case though. Average would probably be a lot
    > lower than worst case. Also, on smt it's not like the current logical cpu
    > is getting blocked because of another task is running on its sibling CPU.
    > The hardware still guarantees equal share of hardware resources for both
    > logical CPUs.

    "Equal share of hardware resources" is exactly the problem; they shouldn't
    have equal share since they're sharing one physical cpu's resources. It's a
    relative breakage of the imposed nice support and I disagree with your
    conclusion.

    --
    -ck
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