• Anton Ivanov's avatar
    Epoll based IRQ controller · ff6a1798
    Anton Ivanov authored
    1. Removes the need to walk the IRQ/Device list to determine
    who triggered the IRQ.
    2. Improves scalability (up to several times performance
    improvement for cases with 10s of devices).
    3. Improves UML baseline IO performance for one disk + one NIC
    use case by up to 10%.
    4. Introduces write poll triggered IRQs.
    5. Prerequisite for introducing high performance mmesg family
    of functions in network IO.
    6. Fixes RNG shutdown which was leaking a file descriptor
    Signed-off-by: default avatarAnton Ivanov <anton.ivanov@cambridgegreys.com>
    Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
    ff6a1798
chan_kern.c 11 KB