From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Jones Subject: Re: is UDP_CORK "real" Date: Thu, 21 Apr 2005 16:53:44 -0700 Message-ID: <42683D08.7030201@hp.com> References: <426833F0.9010803@hp.com> <20050421162505.3db8ed7c.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: To: netdev@oss.sgi.com In-Reply-To: <20050421162505.3db8ed7c.davem@davemloft.net> Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org David S. Miller wrote: > On Thu, 21 Apr 2005 16:14:56 -0700 > Rick Jones wrote: > > >>Is UDP_CORK going to be an ongoing feature? > > > Yes, it's there and it's real. > > If netperf is passing a TCP socket option number in for > a setsockopt() on a UDP socket, how in the world is that > the kernel's problem? I didn't really mean to say that it was a kernel problem per se. I was trying to understand the space, make sure that it was deliberate that there were actual overlaps between the TCP_mumble and UDP_mumble options and such. The release bits for netperf 2.4.0 will have checks to make sure it does not try to set "TCP_NODLEAY" on a UDP socket. Call it a 13 year lingering misfeature in netperf if you like :) rick jones