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    SubjectRe: Early SPECWeb99 results on 2.5.33 with TSO on e1000
    David Woodhouse wrote:
    > said:
    >>> Er, surely the same goes for sys_sendfile? Why have a new system
    >>> call rather than just swapping the 'in' and 'out' fds?
    >>There is an assumption that one is a linear stream of output (in this
    >>case a socket) and the other one is a page cache based file.
    > That's an implementation detail and it's not clear we should be exposing it
    > to the user. It's not entirely insane to contemplate socket->socket or
    > file->file sendfile either -- would we invent new system calls for those
    > too? File descriptors are file descriptors.

    I was rather disappointed when file->file sendfile was [purposefully?]
    broken in 2.5.x...


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