Re: OFFTOPIC: Regarding NT vs Linux

Michael Nelson (mikenel@netcom.com)
Mon, 22 Sep 1997 18:01:42 -0700 (PDT)


On Mon, 22 Sep 1997, Marc Singer wrote:

> > There are also some kewl things like TransmitFile where you can send a
> > data stream out of a socket without having to copy the data in chunks to
> > and from user-space.
> >
> > Sure, Linux could have this.... but it would it be useful if no other unix
> > had this.
>
> Linux does have this and it is better than the NT implementaion. If
> you mmap the file, the kernel doesn't need to copy before sending it
> over the wire. There was a thread on this list about it.

Huh? I thought the conclusion of that thread was that the mmap method
incurred significant overhead because it was only page faulting one page
at a time.

-mike