From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH v2 net-next] tcp: avoid tx starvation by SYNACK packets Date: Wed, 27 Jun 2012 01:13:53 -0700 (PDT) Message-ID: <20120627.011353.1579082129809057643.davem@davemloft.net> References: <20120626.235423.588696200884989114.davem@davemloft.net> <1340781845.2028.133.camel@localhost> <1340782216.10893.427.camel@edumazet-glaptop> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: brouer@redhat.com, hans.schillstrom@ericsson.com, subramanian.vijay@gmail.com, dave.taht@gmail.com, netdev@vger.kernel.org, ncardwell@google.com, therbert@google.com, mph@hoth.dk To: eric.dumazet@gmail.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:40212 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756138Ab2F0IOA (ORCPT ); Wed, 27 Jun 2012 04:14:00 -0400 In-Reply-To: <1340782216.10893.427.camel@edumazet-glaptop> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Wed, 27 Jun 2012 09:30:16 +0200 > Many linux servers in colocations are still using a mono queue NIC, and > default linux configuration is to use a single cpu to handle all > incoming frames (no RPS/RFS). Even worse, many are virtualized guest with single virtual netdev queue :-)