From owner-freebsd-questions@FreeBSD.ORG Mon Oct 14 17:22:46 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id DC8D7F93 for ; Mon, 14 Oct 2013 17:22:45 +0000 (UTC) (envelope-from cjpugmed@gmail.com) Received: from mail-vb0-x244.google.com (mail-vb0-x244.google.com [IPv6:2607:f8b0:400c:c02::244]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 9B28A2905 for ; Mon, 14 Oct 2013 17:22:45 +0000 (UTC) Received: by mail-vb0-f68.google.com with SMTP id e13so1155155vbg.7 for ; Mon, 14 Oct 2013 10:22:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=Pe1/qpWUMliB+PHuMqnE7fJHBziwev3ZIJnwQiE9kr4=; b=jzv4lYWIy8xHBQU6CtJpS/2H/En/V8IWYmfb/njhyuH6ILI39BvjrzdKtD9TOTUxfd 9BGvI6gum9oSjZoqWK+SIXavC2rHUE6bskCBG+LtyiA07lY/KUEvYNsVCM3EugAQlp1G jrmg5xVdnbQLNgfk6/mlmskwrYXRATUUZnPyz9fwjz5m1GMlwSVvTbHVAx4fq1C5Lt60 In+3UEzUqcwHf8yDSoZpgHZheII7a5NWsan635PdbuGU5hT5RyZzZu285joKeCN84St0 I0i0l6dQi9I+m8/3R9Bqhmbe1jz09DAzm5gav764w5ThjMu82JcCNwGn8TkYToJwhf1J NICA== MIME-Version: 1.0 X-Received: by 10.220.169.203 with SMTP id a11mr1183855vcz.26.1381771364645; Mon, 14 Oct 2013 10:22:44 -0700 (PDT) Received: by 10.220.1.17 with HTTP; Mon, 14 Oct 2013 10:22:44 -0700 (PDT) In-Reply-To: References: Date: Mon, 14 Oct 2013 19:22:44 +0200 Message-ID: Subject: Re: Tuning /etc/sysctl.conf From: Carlos Jacobo Puga Medina To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Oct 2013 17:22:46 -0000 Hi Steve, I use it as a paticular desktop PC. Well, if you need more details about it, please, let me know. What do you think about current tuning? Thanks --CJPM 2013/10/14 Carlos Jacobo Puga Medina > Mmm... just a correction in /etc/sysctl.conf, it seems that by mistake > I've copied a website link into the file. Sorry, it was a copy-paste error > :) > > % cat /etc/sysctl.conf > # $FreeBSD: release/9.2.0/etc/sysctl.conf 112200 2003-03-13 18:43:50Z mux $ > # > # This file is read when going to multi-user and its contents piped thru > # ``sysctl'' to adjust kernel values. ``man 5 sysctl.conf'' for details. > # > > # Uncomment this to prevent users from seeing information about processes > that > # are being run under another UID. > #security.bsd.see_other_uids=0 > vfs.usermount=1 > hw.snd.default_unit=2 > kern.ipc.maxsockbuf=16777216 > kern.ipc.nmbclusters=32768 > kern.ipc.shm_allow_removed=1 > kern.ipc.somaxconn=8192 > kern.maxfiles=65536 > kern.maxfilesperproc=32768 > net.inet.tcp.blackhole=2 > net.inet.tcp.delayed_ack=0 > net.inet.tcp.path_mtu_discovery=0 > net.inet.tcp.recvbuf_auto=1 > net.inet.tcp.recvbuf_inc=16384 > net.inet.tcp.recvbuf_max=16777216 > net.inet.tcp.recvspace=65536 > net.inet.tcp.rfc1323=1 > net.inet.tcp.sendbuf_auto=1 > net.inet.tcp.sendbuf_inc=8192 > net.inet.tcp.sendspace=65536 > net.inet.udp.blackhole=1 > net.inet.udp.maxdgram=57344 > net.inet.udp.recvspace=65536 > net.local.stream.recvspace=65536 > net.local.stream.sendspace=65536 > net.inet.tcp.sendbuf_max=16777216 > net.inet.ip.random_id=1 > > # Allow for up 2 GB of wired memory. > vm.max_wired=524288 > > > > 2013/10/14 Carlos Jacobo Puga Medina > >> Hi people, >> >> I'm very interested to tuning /etc/sysctl.conf according to the >> specifications of my PC. I've been reading some guides [1], tutorials >> [2-3], Q&A [4] and the FreeBSD Handbook's related section 12.12 Tuning with >> sysctl(8), but I think it's much more convenient if I contrast it with >> other examples or experienced users. >> >> Here is my relevant info outputs for help to improve the sysctl(8) >> variables. >> >> % uname -a >> FreeBSD freebsd 9.2-RELEASE FreeBSD 9.2-RELEASE #0 r255898: Fri Sep 27 >> 03:52:52 UTC 2013 root@bake.isc.freebsd.org:/usr/obj/usr/src/sys/GENERIC >> i386 >> >> % dmesg | grep CPU >> CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2394.06-MHz 686-class CPU) >> cpu0: on acpi0 >> p4tcc0: on cpu0 >> >> % dmesg | grep memory >> real memory = 2147483648 (2048 MB) >> avail memory = 2082701312 (1986 MB) >> >> % pciconf -lvv | grep -n2 Ethernet >> 41-sis0@pci0:0:4:0: class=0x020000 card=0x80a71043 chip=0x09001039 >> rev=0x91 hdr=0x00 >> 42- vendor = 'Silicon Integrated Systems [SiS]' >> 43: device = 'SiS900 PCI Fast Ethernet' >> 44- class = network >> 45- subclass = ethernet >> >> My /etc/sysctl.conf >> >> # $FreeBSD: release/9.2.0/etc/sysctl.conf 112200 2003-03-13 18:43:50Z mux >> $ >> # >> # This file is read when going to multi-user and its contents piped thru >> # ``sysctl'' to adjust kernel values. ``man 5 sysctl.conf'' for details. >> # >> >> # Uncomment this to prevent users from seeing information about processes >> that >> # are being run under another UID. >> #security.bsd.see_other_uids=0 >> vfs.usermount=1 >> hw.snd.default_unit=2 >> kern.ipc.maxsockbuf=16777216 >> kern.ipc.nmbclusters=32768 >> kern.ipc.shm_allow_removed=1 >> kern.ipc.somaxconn=8192 >> kern.maxfiles=65536 >> kern.maxfilesperproc=32768 >> net.inet.tcp.blackhole=2 >> net.inet.tcp.delayed_ack=0 >> net.inet.tcp.path_mtu_discovery=0 >> net.inet.tcp.recvbuf_auto=1 >> net.inet.tcp.recvbuf_inc=16384 >> net.inet.tcp.recvbuf_max=16777216 >> net.inet.tcp.recvspace=65536 >> net.inet.tcp.rfc1323=1 >> net.inet.tcp.sendbuf_auto=1 >> net.inet.tcp.sendbuf_inc=8192 >> net.inet.tcp.sendspace=65536 >> net.inet.udp.blackhole=1 >> net.inet.udp.maxdgram=57344 >> net.inet.udp.recvspace=65536 >> net.local.stream.recvspace=65536 >> net.local.stream.sendspace=65536 >> net.inet.tcp.sendbuf_max=16777216 >> net.inet.ip.random_id=1 >> >> http://serverfault.com/questions/64356/freebsd-performance-tuning-sysctls-loader-conf-kernel >> # Allow for up 2 GB of wired memory. >> vm.max_wired=524288 >> >> I will appreciate any input about the subject. >> --CJPM >> >> [1] http://harryd71.blogspot.com.es/2008/10/tuning-freenas-zfs.html >> [2] https://wiki.freebsd.org/SystemTuning#SYSCTL_TUNING >> [3] https://wiki.freebsd.org/NetworkPerformanceTuning >> [4] >> http://serverfault.com/questions/64356/freebsd-performance-tuning-sysctls-loader-conf-kernel >> > >