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    SubjectRe: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3

    * Ingo Molnar <> wrote:

    > > The pushback to the primary thread you speak of is just extra work
    > > in my mind, for networking. Better to just begin operations and sit
    > > in the primary thread(s) waiting for events, and when they arrive
    > > push the operations further along using non-blocking writes, reads,
    > > and accept() calls. There is no blocking context really needed for
    > > these kinds of things, so a mechanism that tries to provide one is a
    > > waste.
    > one question is, what is cheaper, to block out of a read and a write and
    ^-------to back out
    > to set up the event notification and then to return to the user
    > context, or to just stay right in there with all the context already
    > constructed and on the stack, and schedule away and then come back and
    > queue back to the primary thread once the condition the thread is
    > waiting for is done? The latter isnt all that unattractive in my mind,
    > because it always does forward progress, with minimal 'backout' costs.

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      Last update: 2007-02-22 16:37    [W:0.022 / U:3.316 seconds]
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