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    SubjectRe: [Qemu-devel] [RFC] Next gen kvm api
    On 02/07/2012 06:19 PM, Anthony Liguori wrote:
    >> Ah. But then ioeventfd has that as well, unless the other end is in
    >> the kernel too.
    > Yes, that was my point exactly :-)
    > ioeventfd/mmio-over-socketpair to adifferent thread is not faster than
    > a synchronous KVM_RUN + writing to an eventfd in userspace modulo a
    > couple of cheap syscalls.
    > The exception is when the other end is in the kernel and there is
    > magic optimizations (like there is today with ioeventfd).

    vhost seems to schedule a workqueue item unconditionally.

    irqfd does have magic optimizations to avoid an extra schedule.

    error compiling committee.c: too many arguments to function

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      Last update: 2012-02-15 14:49    [W:0.023 / U:1.536 seconds]
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