From owner-freebsd-questions@FreeBSD.ORG Sun Jun 6 10:49:50 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6E326106566B; Sun, 6 Jun 2010 10:49:50 +0000 (UTC) (envelope-from wooh@wooh.hu) Received: from mail.netidea.hu (netwarehouse.netidea.hu [195.228.254.126]) by mx1.freebsd.org (Postfix) with ESMTP id 25E5A8FC0C; Sun, 6 Jun 2010 10:49:49 +0000 (UTC) Received: from radon (localhost [127.0.0.1]) by mail.netidea.hu (Postfix) with ESMTP id 54492128EB8; Sun, 6 Jun 2010 12:49:14 +0200 (CEST) X-Virus-Scanned: amavisd-new at netidea.hu Received: from mail.netidea.hu ([127.0.0.1]) by radon (mail.netidea.hu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7wdMnPlgl7AA; Sun, 6 Jun 2010 12:49:13 +0200 (CEST) Received: from jamms-MacBook.local (catv-80-99-63-6.catv.broadband.hu [80.99.63.6]) by mail.netidea.hu (Postfix) with ESMTP id 3C75E128C9E; Sun, 6 Jun 2010 12:49:13 +0200 (CEST) Message-ID: <4C0B7D4B.4080402@wooh.hu> Date: Sun, 06 Jun 2010 12:49:47 +0200 From: Adam PAPAI User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: freebsd-questions@freebsd.org, freebsd-hackers@freebsd.org References: <4C09932B.6040808@wooh.hu> In-Reply-To: X-Enigmail-Version: 1.0.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Subject: Re: sysbench / fileio - Linux vs. FreeBSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Jun 2010 10:49:50 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 6/5/10 2:43 AM, Igor Mozolevsky wrote: > On 5 June 2010 00:58, Adam PAPAI wrote: > >> How can I tune my disk to make it faster? Is it possible? What is the >> reason of the really slow I/O with more than 4 threads? What do you >> recommend me to do? Why is it damn slow with 8K blocksize? > > Does linux still have async disk writes by default? Anyway, I looked after the default ext3 values: Debian mounts the ext3 with "defaults" option. This means: rw, suid, dev, exec, auto, nouser, and async. Well it means I have to test it with UFS (async) and Debian (sync). These test will take some time but I hope it worth the effort. Hm... - -- Adam PAPAI -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJMC31LAAoJEGq0EWvh5uiIu3MH/i7KWfcYj2zXSsqbUK2W4dKi B0+pD861FBtxmS+O4c4jzR5vJYeVVyVfZ4DLpHs0tqr6u2QZWgTD5c9GXxRNn9Hg pVIL8/iL9BGtjNZdbjKU2RlE+QOb4LUuxqTWtz3poH4e6CQlAMOzvBcmbK41eWVn nr2/jlS8n7TFk74ewAH9NXABrhIaOtCjBf5YWWA9AnKhqjdlAM7gxC6QcbsGTLlR 5zvq6UfGuAMECOV98FDlm3k20LydLT0/Mdw9jth9+50v1NMnAddYjfZ/7Ci2KzZo uUN1VRcOhxmw6oliMPu/+Z324d6Xrp1vXpDQN8tSzME1d3O3CswPDfs3ocpjmkU= =VEsH -----END PGP SIGNATURE-----