On Sat, May 12, 2007 at 12:39:57AM +0100, Daniel P. Berrange wrote: > On both the client & server end every socket then performance using > qemu+tcp://localhost/system was basically identical to qemu:///system > Now if going across the LAN/WAN the delay caused by Nagle will be a > smaller proportion of the RPC call time, due to extra round trip time > on the real network. It is still wasteful to leave it enable though > because its inserting arbitrary delays & due to the sync call-reply > nature of our RPC it'll never get enough data to fill a packet. So > I say disable Nagle all the time. +1 For this kind of usage Nagle just can't provide benefits to anyone. Daniel -- Red Hat Virtualization group http://redhat.com/virtualization/ Daniel Veillard | virtualization library http://libvirt.org/ veillard@xxxxxxxxxx | libxml GNOME XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/