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SubjectRe: sendfile support in linux
On Tue, 2003-01-28 at 01:45, Stanley Yee wrote:
> I'm trying to find out more about sendfile(2). So far, from what I've
> gathered, it sounds like the requirements for it are (please correct me if
> I'm wrong):
> 1. A kernel with sendfile support (i.e. 2.4.X)
> 2. A network card capable of doing the TCP checksum in the hardware
> 3. The application must support sendfile

Those are the user requirements yes. Of course the programmer only needs
to assume (1) to start writing applications. Oh and its probably worth

4. You can't do zero-copy receive.

> Do you know what applications support zerocopy (sendfile)? I noticed that a
> zerocopy NFS patch was added to the 2.5.x tree. Does the 2.4.X NFS daemon
> support zerocopy? Does samba support zerocopy and if so what version?

Samba, tux2, apache?, all the big stuff.

Dunno about NFS.

// Gianni Tedesco (gianni at scaramanga dot co dot uk)
lynx --source | gpg --import
8646BE7D: 6D9F 2287 870E A2C9 8F60 3A3C 91B5 7669 8646 BE7D
[unhandled content-type:application/pgp-signature]
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