From owner-freebsd-net@FreeBSD.ORG Fri Apr 26 17:40:05 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 8C99370 for ; Fri, 26 Apr 2013 17:40:05 +0000 (UTC) (envelope-from weiler@soe.ucsc.edu) Received: from mail-pa0-f44.google.com (mail-pa0-f44.google.com [209.85.220.44]) by mx1.freebsd.org (Postfix) with ESMTP id 634291527 for ; Fri, 26 Apr 2013 17:40:05 +0000 (UTC) Received: by mail-pa0-f44.google.com with SMTP id bi5so2628266pad.31 for ; Fri, 26 Apr 2013 10:40:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ucsc.edu; s=ucsc-google; h=x-received:message-id:date:from:user-agent:mime-version:to:cc :subject:references:in-reply-to:content-type :content-transfer-encoding; bh=VfmdXg3eyrFP/5MUZXmvCCl7/dwKjZnMEMYrVATniJg=; b=b6B2QkGosKkXNNrKtbt8d/SoD+SuvLOiSbwSV6qsaFJS5DQEkSFM0Qh2lDGyLksBDv //Uzkv/Ih7+P2QyRgAqN/JlKmxFPOdXhopgqVa8lM7yhAzfjKsjRWUBK+fQHlPQQVL33 +3yaAnBppQcqPxo8yOEN230XWWuL6Hy6Yclro= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:message-id:date:from:user-agent:mime-version:to:cc :subject:references:in-reply-to:content-type :content-transfer-encoding:x-gm-message-state; bh=VfmdXg3eyrFP/5MUZXmvCCl7/dwKjZnMEMYrVATniJg=; b=iCCgWoIBvvijWAp0Asf4pA8uVxzehJ6ZtXEQ3XQjR2hkIj2UhmtxxGiRU5bnxLt1Yi m4Uc0+hzb3/Epe/Hr6q1g3D13aSVVXB1dP9qJvThucZkkxyhqPRZh+n8baSR23PWd8yY YvhklagqgHKQEMyULb6KUJz+xHEz2iIYJndAUsatc1ebM2RGuRHiDvd9bokuTGyIW5d8 8fyukxDMCTCTlXMV/7KchWgU0MNFH7E1G82oln5YxMkY9Q9ykOBbvL1X7EC7GvmE9etD XvWhwBjCxbaG0X0SuIUNJUwjncy9Z+nX5RxzI60NUSZYkHtoQ5PU8KlLu75EI6fiZXWZ iwzw== X-Received: by 10.66.26.166 with SMTP id m6mr1185144pag.68.1366998004970; Fri, 26 Apr 2013 10:40:04 -0700 (PDT) Received: from [10.4.0.18] (fw01.cghub.ucsc.edu. [192.35.223.10]) by mx.google.com with ESMTPSA id ra9sm13597403pab.16.2013.04.26.10.40.02 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 26 Apr 2013 10:40:03 -0700 (PDT) Message-ID: <517ABBF3.3050001@soe.ucsc.edu> Date: Fri, 26 Apr 2013 10:40:03 -0700 From: Erich Weiler User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130328 Thunderbird/17.0.5 MIME-Version: 1.0 To: Ryan Stone Subject: Re: pf performance? References: <5176E5C1.9090601@soe.ucsc.edu> <20130426134224.GV76816@FreeBSD.org> <517A93FE.7020209@soe.ucsc.edu> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gm-Message-State: ALoCoQkdutliSyea6egdL/nFhg5SN9f3bspPsN9O+zOFQzLgmZJiCebJg3pc6991W2ti8DA3yRv7 Cc: Paul Tatarsky , freebsd-net X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Apr 2013 17:40:05 -0000 > If this machine is dedicated for pf then setting sysctl net.isr.direct=0 > might also improve performance, by forcing all packets to go through a > single netisr thread (assuming that net.isr.maxthreads is 1). Note that > this will apply to traffic that does not go through pf, so if this > machine were doing other network things (e.g. serving NFS) then it would > bottleneck your other traffic behind your pf traffic. Hmm, we see this: [2.0.2-RELEASE][admin@fire02.cghub]/root(1): sysctl net.isr.direct net.isr.direct: 1 [2.0.2-RELEASE][admin@fire02.cghub]/root(2): sysctl net.isr.maxthreads net.isr.maxthreads: 3 Should I set net.isr.maxthreads=1 before setting net.isr.direct=0 ??