From owner-freebsd-hardware@FreeBSD.ORG Mon Sep 3 02:41:16 2012 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D6F6F1065700 for ; Mon, 3 Sep 2012 02:41:16 +0000 (UTC) (envelope-from ayoung@mosaicarchive.com) Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id 94AEC8FC0C for ; Mon, 3 Sep 2012 02:41:16 +0000 (UTC) Received: by obbun3 with SMTP id un3so11055267obb.13 for ; Sun, 02 Sep 2012 19:41:15 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-originating-ip:date:message-id:subject:from:to :content-type:x-gm-message-state; bh=No//9IpbPDUrdOz5JDEBi0TOml5w2PsW2rSU1kPyg6g=; b=kW5q7CTlvFzrluBCtwGPgnGMIhiGeHsyXkESQK0JqJzI5/ztuv1Fw9cLuPecaVai0F raUykG5pTllRp89/v7jyGoUyIC0rKzwlfjHglBW9vNGhoyllOVoZhXA+CSfpPTaOUgQw u1+42Q7OGgIKuiCDBHCSYmeJtbcf8eZOJdTThO58+5Cy6qmNqaT/u/0ksf//Xt7xmyT4 0yStscp/VYaC9h2lVFePMQ/UGbewJJq1DDRB2OjgHsXcokf5QYdEBnlzAEA0MWHUe7HW /J2q9jNurIyaRGXrA1qVoGMQzzG29lm9hxf9lLoudV3Y1YXKAhBP3TmQ5iaoeH1TyP8h SI+A== MIME-Version: 1.0 Received: by 10.60.22.103 with SMTP id c7mr12762314oef.75.1346640075634; Sun, 02 Sep 2012 19:41:15 -0700 (PDT) Received: by 10.76.174.38 with HTTP; Sun, 2 Sep 2012 19:41:15 -0700 (PDT) X-Originating-IP: [67.217.105.93] Date: Sun, 2 Sep 2012 22:41:15 -0400 Message-ID: From: Andy Young To: freebsd-hardware@freebsd.org X-Gm-Message-State: ALoCoQnckdfhn/Rh6QVvtoV7nHKS0qnlRGgiF0dsPmeQlDY3BD/nTaALasFOxVC0pEeJCC5mBEhY Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: What is rx_processing_limit sysctl for Intel igb NIC driver? X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Sep 2012 02:41:16 -0000 I am tuning our server that has an Intel 82576 gigabit NIC using the igb driver. I see a lot of posts on the net where people bump the rx_processing_limit sysctl from the default value of 100 to 4096. Can anyone tell me what this is intended to do? Thanks! Andy