From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vlad Yasevich Subject: Re: [RFC] New driver API to speed up small packets xmits Date: Thu, 10 May 2007 14:13:42 -0400 Message-ID: <464360D6.4080402@hp.com> References: <46435412.50800@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Krishna Kumar2 , Evgeniy Polyakov , netdev@vger.kernel.org To: Rick Jones Return-path: Received: from atlrel8.hp.com ([156.153.255.206]:50126 "EHLO atlrel8.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752696AbXEJSNq (ORCPT ); Thu, 10 May 2007 14:13:46 -0400 In-Reply-To: <46435412.50800@hp.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Rick Jones wrote: >> It is the reverse - GSO will segment one super-packet just before calling >> the driver so that the stack is traversed only once. In my case, I am >> trying to send out multiple skbs, possibly small packets, in one shot. >> GSO will not help for small packets. > > If there are small packets that implies small sends, which suggests that > they would be coalesced either implicitly by the Nagle algorithm or > explicitly with TCP_CORK no? > > rick jones > - May be for TCP? What about other protocols? -vlad