From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: [e1000 2.6 10/11] TxDescriptors -> 1024 default Date: Thu, 11 Sep 2003 16:22:35 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <3F6103BB.5030706@candelatech.com> References: <3F60CA6D.9090503@pobox.com> <3F60D0F3.8080006@candelatech.com> <20030911131219.0ab8dfdd.davem@redhat.com> <3F60DDCC.5020906@candelatech.com> <20030911140746.4f0384a1.davem@redhat.com> <3F60E947.4090005@candelatech.com> <20030911142906.74d9dfe5.davem@redhat.com> <3F60F3F7.6090203@candelatech.com> <20030911160252.6cd6c07d.davem@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: jgarzik@pobox.com, scott.feldman@intel.com, netdev@oss.sgi.com, ricardoz@us.ibm.com Return-path: In-Reply-To: <20030911160252.6cd6c07d.davem@redhat.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org David S. Miller wrote: > On Thu, 11 Sep 2003 15:15:19 -0700 > Ben Greear wrote: > > >>And the original poster shows how a similar problem slows down TCP >>as well due to local dropped packets. > > > So, again, dampen the per-socket send queue sizes. That's just a band-aid to cover up the flaw with the lack of queue-pressure feedback to the higher stacks, as would be increasing the TxDescriptors for that matter. -- Ben Greear Candela Technologies Inc http://www.candelatech.com