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 -- Kenneth Merry [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
