On Mon, Feb 25, 2013 at 07:02:30PM -0600, clow...@clownix.net wrote: > The associated file contains a README that will guide you through the > experiment that shows the difference between unix socket carried pings: > 0.7ms and inet carried pings: 40ms!!!
There is no fundamental reason for inet sockets to have a 40 millisecond round-trip time on localhost. I remember from years ago that Solaris "fuses" localhost inet sockets and bypasses TCP for them. Adding a call to socket_set_nodelay() net/socket.c might help. But I think there is something else broken here. Please submit the UNIX domain sockets patch according to the guidelines at http://wiki.qemu.org/Contribute/SubmitAPatch. Stefan
