On Mon, 24 Jun 2002, Kenneth D. Merry wrote:

> On Mon, Jun 24, 2002 at 01:17:03 -0500, Mike Silbersack wrote:
> > On Sun, 23 Jun 2002, Kenneth D. Merry wrote:
> >
> > > I'm planning on checking in the zero copy sockets code Tuesday evening,
> > > MDT.  If there are any concerns, I'm more than willing to delay it.
> >
> > Out of curiousity, what happens when the page being write()n is a mmap'd
> > page shared by multiple processes?  Will the page be shared?  That could
> > be a big reduction in mbuf cluster usage on some http/ftp systems, I'd
> > guess.
>
> The page would be shared, until one of the processes decides to write to it
> while it is still referenced in the kernel.  If that happens, it'll get
> copied.
>
> Ken

Cool, thttpd / others should benefit greatly then.

Mike "Silby" Silbersack


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