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    SubjectRe: [PATCH 4/4] copyfile: copyfile


    On Tue, 7 Sep 2004, Jörn Engel wrote:
    >
    > > Actually, the 4kB batching one was - if you only max out to using 4kB at a
    > > time, sendfile() is kind of pointless, because then it will never do
    > > multi-page copies in the first place, and all the complexity at a lower
    > > level is worthless..
    >
    > Give me a better number. 16k? 1M? Or would it not be fundamentally
    > flawed if the unit was seconds, instead of bytes? That makes a lot
    > more sense, since a floppy and a Ultra320 RAID array differ slightly
    > in speed and it's response time the users actually care about.

    Well, you can't do it by seconds. What you _can_ do is to just make the
    fundamental page-cache sendfile thing check for interruptible, and just do
    it at a lower level. Maybe.

    Linus
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