From owner-freebsd-fs@FreeBSD.ORG Mon Nov 25 18:15:06 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E05EA14B for ; Mon, 25 Nov 2013 18:15:05 +0000 (UTC) Received: from mail-pb0-f51.google.com (mail-pb0-f51.google.com [209.85.160.51]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id B5D7E2D4A for ; Mon, 25 Nov 2013 18:15:05 +0000 (UTC) Received: by mail-pb0-f51.google.com with SMTP id up15so6238824pbc.38 for ; Mon, 25 Nov 2013 10:14:59 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:cc:content-type; bh=fhk8DiJ/XaV5MIDRP8BXxfW3ccbS3pTfWaqW+beGOHY=; b=DUomUhcJIeW+k2YTmAyW0EJxXUxp2YNC0cB5fTzATmw9g7BszgujK6GTmumuM9RQbs GFeoY4EktAi+gXbjWIoWo5fI0efpQXFp+MwjmxX3s35+aEwIcOLi6ScM0NucUpvIY2Gb Mb23HhOkMqHVfFBx2glAeXMrLdhtXTNtQTQqcnuqkbBLrRTyVjoOeNRqr6EIQ+EpkIaI YBKjyV8Q/kKtnuBuDmxyojYIg3SIivDyV+z+andDs0bcnPShA0udgg94E1RZs37dgzPM y2bHQWudHaJI4tPlfA9PA0ccjlPgw5nDa746dF6tvFArlngk2ZBnDW238NxTGH1kPOhk UW4A== X-Gm-Message-State: ALoCoQlSw59o/CDPolv/Yq4pvBQyrI3ti2GTB2slEm/JNwuuV6kdJCagEva/747ad9ivC+UUEGhZ MIME-Version: 1.0 X-Received: by 10.66.26.17 with SMTP id h17mt2738863pag.181.1385403299182; Mon, 25 Nov 2013 10:14:59 -0800 (PST) Received: by 10.70.102.133 with HTTP; Mon, 25 Nov 2013 10:14:59 -0800 (PST) In-Reply-To: References: <2103733116.16923158.1384866769683.JavaMail.root@uoguelph.ca> <9F76D61C-EFEB-44B3-9717-D0795789832D@gmail.com> <5969250F-0987-4304-BB95-52C7BAE8D84D@gmail.com> <18391B9C-2FC4-427B-A4B6-1739B3C17498@gmail.com> Date: Mon, 25 Nov 2013 11:14:59 -0700 Message-ID: Subject: Re: Performance difference between UFS and ZFS with NFS From: Eric Browning Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.16 Cc: FreeBSD FS X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Nov 2013 18:15:06 -0000 I am using /dev/zero /usr/bin/time -h dd if=/dev/zero of=sometestfile bs=1024 count=3000000 On Sun, Nov 24, 2013 at 12:31 PM, krad wrote: > I was thinking the same, if it was using /dev/zero as an input any > compression would skew the results a little. > > > On 24 November 2013 15:15, Steven Hartland wrote: > >> ----- Original Message ----- From: "Eric Browning" >> >> >> >> On a side note I forgot that I had used dd to test the disk performance a >>> while ago when I was using ZFS. >>> >>> ZFS performance: >>> 3072000000 bytes transferred in 34.167480 secs (89910055 bytes/sec) >>> 34.17s real 0.61s user 31.89s sys >>> >>> UFS performance: >>> 3072000000 bytes transferred in 11.848883 secs (259264942 bytes/sec) >>> 11.85s real 0.58s user 11.25s sys >>> >>> Again, even with dd performance is about 3x faster with UFS with the same >>> disks. >>> >> >> Interesting, what was you command exactly? >> >> Regards >> Steve >> >> ================================================ >> This e.mail is private and confidential between Multiplay (UK) Ltd. and >> the person or entity to whom it is addressed. In the event of misdirection, >> the recipient is prohibited from using, copying, printing or otherwise >> disseminating it or any information contained in it. >> In the event of misdirection, illegible or incomplete transmission please >> telephone +44 845 868 1337 >> or return the E.mail to postmaster@multiplay.co.uk. >> >> >> _______________________________________________ >> freebsd-fs@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-fs >> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >> > > -- Eric Browning Systems Administrator 801-984-7623 Skaggs Catholic Center Juan Diego Catholic High School Saint John the Baptist Middle Saint John the Baptist Elementary