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    SubjectRe: [2.4.17/18pre] VM and swap - it's really unusable
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    > Preemptive gives better interactivity under load, which is the whole
    > point of multitasking (think about it). If you don't want the overhead
    > (which also exists without preemptive) run #processes == #processors.

    That is generally not true. Pe-emption is used in user space to prevent
    applications doing very stupid things. Pre-emption in a trusted environment
    can often be most efficient if done by the programs themselves.

    Userspace is not a trusted environment

    > I'm really surprised that people are still actually arguing _against_
    > preemptive multitasking in this day and age. This is a no-brainer in
    > the long run, where current corner cases aren't holding us back.

    Andrew's patches give you 1mS worst case latency for normal situations, that
    is below human perception, and below scheduling granularity. In other words
    without the efficiency loss and the debugging problems you can place the
    far enough latency below other effects that it isnt worth attacking any more.

    Alan
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