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    SubjectRe: [RFC PATCH 0/6] Convert all tasklets to workqueues
    Steven Rostedt wrote:
    > I had very little hope for this magic switch to get into mainline. (maybe
    > get it into -mm) But the thing was is that tasklets IMHO are over used.
    > As Ingo said, there are probably only 2 or 3 places in the kernel that a
    > a switch to work queue conversion couldn't solve.

    This is purely a guess, backed by zero evidence.

    These network drivers were hand-tuned to use tasklets. Sure it will
    WORK as a workqueue, but that says nothing equivalence.

    > Those places could then
    > probably be solved by a different design (yes that would take work).

    Network driver patches welcome :)

    > Tasklets are there because there
    > wasn't work queues or kthreads at the time of solving the solution that
    > tasklets solved.

    Completely false, at least in network driver land. Threads existed and
    were used (proof: 8139too, among others).

    Kernel threads were not used for hot path network packet shovelling
    because they were too damn slow. Tasklets were single-threaded, fast,
    simple and immediate. Workqueues today are simple and almost-fast.


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      Last update: 2007-06-29 16:29    [W:0.023 / U:36.976 seconds]
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