Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754131AbaKSBnJ (ORCPT ); Tue, 18 Nov 2014 20:43:09 -0500 Received: from mail-qg0-f43.google.com ([209.85.192.43]:53309 "EHLO mail-qg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754004AbaKSBnH (ORCPT ); Tue, 18 Nov 2014 20:43:07 -0500 MIME-Version: 1.0 In-Reply-To: <1416327778-17716-1-git-send-email-pagupta@redhat.com> References: <1416327778-17716-1-git-send-email-pagupta@redhat.com> Date: Tue, 18 Nov 2014 17:43:06 -0800 Message-ID: Subject: Re: [PATCH net-net 0/4] Increase the limit of tuntap queues From: Alexei Starovoitov To: Pankaj Gupta Cc: "linux-kernel@vger.kernel.org" , "netdev@vger.kernel.org" , "David S. Miller" , Jason Wang , mst@redhat.com, dgibson@redhat.com, Veaceslav Falico , Eric Dumazet , Vladislav Yasevich , Jerry Chu , wuzhy@linux.vnet.ibm.com.pnq.redhat.com, Pavel Emelianov , Tom Herbert , bhutchings@solarflare.com, xii@google.com, Stephen Hemminger , =?UTF-8?B?SmnFmcOtIFDDrXJrbw==?= , sergei.shtylyov@cogentembedded.com Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 18, 2014 at 8:22 AM, Pankaj Gupta wrote: > Networking under KVM works best if we allocate a per-vCPU rx and tx > queue in a virtual NIC. This requires a per-vCPU queue on the host side. ... > I have done some testing to find out any regression and with sample program > which creates tun/tap for single queue / multiqueue device and it seems to be > working fine. I will also post the performance numbers. Sounds quite exciting. please share recommended setup (queue assignments) and performance gains you're seeing. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/