From owner-freebsd-current@FreeBSD.ORG Sun Apr 21 15:02:01 2013 Return-Path: Delivered-To: freebsd-current@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 B06ABCD0 for ; Sun, 21 Apr 2013 15:02:01 +0000 (UTC) (envelope-from jrisom@gmail.com) Received: from mail-ie0-x233.google.com (mail-ie0-x233.google.com [IPv6:2607:f8b0:4001:c03::233]) by mx1.freebsd.org (Postfix) with ESMTP id 82265160E for ; Sun, 21 Apr 2013 15:02:01 +0000 (UTC) Received: by mail-ie0-f179.google.com with SMTP id 16so6170883iea.38 for ; Sun, 21 Apr 2013 08:02:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:message-id:date:from:user-agent:mime-version:to:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=C/RWgYYNEPRvDNa+C0NuiVJBD82kC480ZKiNMe48j14=; b=OrDOiUK1ezQipl8nEFdy8XHDQlCACA6ulht81BJgv4FFvF6aFULV1wV5JKgkJrANpN ZmijehZIOkDXESG9ZSaQzVeZw+PLCqyBdkA2pSSmuWjX1wrxtnBND3QpQY5LT9MqU8b1 jKeFlrpNocNNJD9OwLKBed+U1TlCzLuZWnDE84UYrGCIN7m1QwLrKeZCfSDX0xyHmtuh +4TfsT/gEB/qPlSHcI/Xe5RRF9xAJRDIQ/Zgb3EY+vz+UYUpf3h1OUVYRIBS6iM8I1jy 6NPsE8CKgmzIP+AjYzqghC2sh7az/wI408rYCPViP/yB8HRKRT5NJ6rXW6qwMDlTbHQS Opag== X-Received: by 10.50.11.111 with SMTP id p15mr2605432igb.21.1366556521247; Sun, 21 Apr 2013 08:02:01 -0700 (PDT) Received: from [192.168.1.34] (c-98-212-197-211.hsd1.il.comcast.net. [98.212.197.211]) by mx.google.com with ESMTPSA id m4sm12186990igd.0.2013.04.21.08.02.00 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 21 Apr 2013 08:02:00 -0700 (PDT) Message-ID: <5173FF63.7060702@gmail.com> Date: Sun, 21 Apr 2013 10:01:55 -0500 From: Joshua Isom User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130328 Thunderbird/17.0.5 MIME-Version: 1.0 To: freebsd-current@freebsd.org Subject: Re: panic when booting HEAD on i386 References: <20130420152102.GC67273@kib.kiev.ua> <20130421112749.GF67273@kib.kiev.ua> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 Apr 2013 15:02:01 -0000 On 4/21/2013 6:54 AM, Ganbold Tsagaankhuu wrote: > As mentioned in one of my previous email I have 2GB machine which is > probably not worth to have zfs on such system. > Sorry for the noise. > > thanks, > > Ganbold > > Before I upgraded my system, I used 2GB of ram with ZFS on root, no UFS on the system. Right now my ARC is 17GB, and in some situations it seems slower with the excess caching. Here are the memory settings I used. vm.kmem_size="512M" vm.kmem_size_max="1024M" vfs.zfs.arc_max="512M" One major difference is I'm using amd64, not i386. Although ZFS works on i386, it uses a lot of 64 bit math, for performance reasons you should use ZFS on amd64.