From owner-freebsd-current@FreeBSD.ORG Mon Nov 10 11:09:46 2014 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E135ED18; Mon, 10 Nov 2014 11:09:46 +0000 (UTC) Received: from mail-pd0-x22c.google.com (mail-pd0-x22c.google.com [IPv6:2607:f8b0:400e:c02::22c]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id AE51B22A; Mon, 10 Nov 2014 11:09:46 +0000 (UTC) Received: by mail-pd0-f172.google.com with SMTP id r10so7642761pdi.31 for ; Mon, 10 Nov 2014 03:09:46 -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=DmG6EpcpVS0JH+Uu87SbsVoa35vJKRfI3fehUgTccsY=; b=d1Xbq5Cl01mPViZ1s2jIdWC0cSBqV0MVBJKNPwPjpwFUQ0u7c6J8umpWJC5cM6i5KZ nbdF2NHjGxBZe6bpbXCb3JeTb/TIXLO/o/MUN/ztk3q/b7T7obK9cvDz1zi2AFaDGPgf jO7sZ0hxYKTOHMjVnJY150CkyEMP28UIBc2ChozhdYlVbGI4ep7x8iiF7AglJkhSNy+N fp/Y5j5kJk00EqHjA8WuoX3FhXicymqLZTFVQmphl/hsVEeYc+ZyVBO6+jBSIgfDzKLc E6Ar8QSW2lYeSez59CTmB5f0MbkZGUQk83xEgc2wEcpqyYneMyD4v3QBnXgur1AemmsJ GPJQ== X-Received: by 10.70.88.44 with SMTP id bd12mr3225357pdb.133.1415617786244; Mon, 10 Nov 2014 03:09:46 -0800 (PST) Received: from kmatoMacBook-Pro.local ([221.234.44.207]) by mx.google.com with ESMTPSA id rb2sm16372602pab.5.2014.11.10.03.09.44 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 10 Nov 2014 03:09:45 -0800 (PST) Message-ID: <54609CF4.4030407@gmail.com> Date: Mon, 10 Nov 2014 19:09:40 +0800 From: k simon User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: "Wojciech A. Koszek" , freebsd-current@freebsd.org Subject: Re: FreeBSD + Google Code-In 2014 = we need ideas. References: <20141110035915.GA50986@FreeBSD.org> In-Reply-To: <20141110035915.GA50986@FreeBSD.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 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: Mon, 10 Nov 2014 11:09:47 -0000 Hello, List, 2 ideas: 1. port DFBSD's CAM DA driver It's doing much better than FB in heavy load with random IO, eg. squid or postgres databases for zabbix 1.8. It's released within DFBSD V2.10 "CAM DA driver enhanced to separate read and write streams, allowing concurrent write completion in the face of many stalled read requests." http://leaf.dragonflybsd.org/mailarchive/commits/2011-04/msg00062.html http://leaf.dragonflybsd.org/mailarchive/commits/2011-04/msg00061.html 2. port DFBSD's swapcache ZFS is so memory hungry, I'd like use the rock UFS for most other than nfs/samba server similar application, but curreently FB has no solutions can utilize SSD to speed up UFS's performance. Maybe it's not quite new technology, but it's useful. Regards Simon