Re: scheduler ignores need_resched flag in 2.2.x and 2.3.x?

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Mar 21 2000 - 07:33:25 EST

  • Next message: Bob_Tracy: "LOTS of paging activity in 2.3.99-pre1"

    > This is what makes Ingo's latency patch less dangerous: need_resched is hard
    > to set. Your scenario requires that an interrupt routine, interrupting
    > kernel mode, set needs_resched. Where does this happen?

    A process wake from interrupt state - eg a network event. Its not actually
    that uncommon. The window is small however so it isnt likely to get hit
    much.

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.rutgers.edu
    Please read the FAQ at http://www.tux.org/lkml/



    This archive was generated by hypermail 2b29 : Tue Mar 21 2000 - 07:45:50 EST