The original report on net.inet.tcp.delayed_ack was from someone on a freebsd 6.0 system. Now, about this programmatic approach: On Sun, Dec 17, 2006 at 11:08:07AM -0500, Wesley Craig wrote: > Sorry, that's backwards: > > int one = 1; > > if (( proto = getprotobyname( "tcp" )) == NULL ) { > syslog( LOG_ERR, "getprotobyname: %m" ); > return( -1 ); > } > > if ( setsockopt( socket_fd, proto->p_proto, TCP_NODELAY, > &one, sizeof( one )) != 0 ) { > syslog( LOG_ERR, "snet_setopt: %m" ); > return( -1 ); > } > > Hopefully you get the idea! > > :wes Is it enough to set this on the listening IMAP socket, or does it need to be set on the sockets that get opened up as the dialogue progresses? Put differently, can I write a little independent program to set the socket options, or do I need to modify the cyrus sources (or perhaps those of mailutils?)? Thanks. Ross ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html