From owner-freebsd-net@FreeBSD.ORG Thu Mar 8 17:21:24 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9386A1065674 for ; Thu, 8 Mar 2012 17:21:24 +0000 (UTC) (envelope-from adrian.minta@gmail.com) Received: from mail-ey0-f182.google.com (mail-ey0-f182.google.com [209.85.215.182]) by mx1.freebsd.org (Postfix) with ESMTP id 213078FC12 for ; Thu, 8 Mar 2012 17:21:23 +0000 (UTC) Received: by eaaf13 with SMTP id f13so227372eaa.13 for ; Thu, 08 Mar 2012 09:21:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=uPFgLKBIKibWWlYw+pJnOt0JvnVlXtYbiGEiiBfNC+k=; b=L4cn/mPeHnuyhGDENdkypVbhta+/2NhbCxZoEx2TLiuVkAQGqsfigjmA689rZzI4Iq XEMqpJSKZnOI5zgeeNFt7X77Zht1xzyL0uXfhhfbXhGGV9Wwctlk/Vg+FnD0e+Kx+pER 1bb0+pEnCYniuMjay60dY+JOeVU5q/k0vK7jJAAoFOqS9mbRHwGUWwirJK7YT9tHXJhb fnXMw2OEjSLZkjq4Esh7zMwUFfQZSQ7K8BxAGGYr/xQjGJW2Cold5A6p3Ax6FQrtwEYB 1LqWuUUdrj+ZqwQZN1aukASAUYd3GS9uIvZUbpgNplFFp7PsYTzrdvy/qddMQ19PAbPc +MTQ== Received: by 10.213.26.8 with SMTP id b8mr1351442ebc.289.1331227283019; Thu, 08 Mar 2012 09:21:23 -0800 (PST) Received: from [192.168.10.10] ([188.26.158.206]) by mx.google.com with ESMTPS id w9sm8202817eei.8.2012.03.08.09.21.21 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 08 Mar 2012 09:21:21 -0800 (PST) Message-ID: <4F58EA90.2040300@gmail.com> Date: Thu, 08 Mar 2012 19:21:20 +0200 From: Adrian Minta User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111114 Icedove/3.1.16 MIME-Version: 1.0 To: freebsd-net@freebsd.org References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: Multiqueue support, igb X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Mar 2012 17:21:24 -0000 On 03/08/12 14:47, Ivan Voras wrote: > Hello, > > What is the current state of support for multithreaded TCP processing in > CURRENT? If a NIC supports multiple queues, will they be used > automatically or net.isr.numthreads needs to be increased? > > I have this situation on a machine with an igb card: > > irq256: igb0:que 0 103573 11 > irq257: igb0:que 1 10094 1 > irq258: igb0:que 2 18231 2 > irq259: igb0:que 3 18186 2 > > This looks like the first queue is used ~~ 10x more often than the > others. Is this a problem? > > I believe that the card do internally some sort of ether-channel. This may explain your findings. -- Best regards, Adrian Minta