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    SubjectRe: epoll (was Re: [PATCH] async poll for 2.5)
    On 22 Oct 2002, Charles 'Buck' Krasic wrote:

    > So maybe epoll's moment of utility is only transient. It should have
    > been in the kernel a long time ago. Is it too late now that AIO is
    > imminent?

    This is not my call actually. But beside comparing actual performance
    between AIO and sys_epoll, one of the advantages that the patch had is
    this :

    arch/i386/kernel/entry.S | 4
    drivers/char/Makefile | 4
    fs/Makefile | 4
    fs/file_table.c | 4
    fs/pipe.c | 36 +
    include/asm-i386/poll.h | 1
    include/asm-i386/unistd.h | 3
    include/linux/fs.h | 4
    include/linux/list.h | 5
    include/linux/pipe_fs_i.h | 4
    include/linux/sys.h | 2
    include/net/sock.h | 10
    net/ipv4/tcp.c | 4

    That is, it has a very little "intrusion" in the original code by plugging
    in the existing architecture.



    - Davide


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