From owner-freebsd-current@FreeBSD.ORG Fri Nov 13 01:05:58 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C7631106566C; Fri, 13 Nov 2009 01:05:58 +0000 (UTC) (envelope-from sullrich@gmail.com) Received: from ey-out-2122.google.com (ey-out-2122.google.com [74.125.78.26]) by mx1.freebsd.org (Postfix) with ESMTP id 320678FC15; Fri, 13 Nov 2009 01:05:57 +0000 (UTC) Received: by ey-out-2122.google.com with SMTP id 9so724699eyd.9 for ; Thu, 12 Nov 2009 17:05:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :from:date:message-id:subject:to:cc:content-type; bh=Pimlobc8yjXcQF1A0r36qwx/2t0tmzNqlnRlpMpQC+8=; b=SIJh+xQBufwi0zvV1+/OdmEODdaRg10dx9+RknVlkznJACxZBtZlS36nVRP2w5aKU7 3xEe9eVBQDqP/7yhi8rqX7q/g+TlW/K7poIsXW6ihCRnq8eAxWH2wVpkWNHjzcEr/XqA qF3c3V9G5BlnGTPWO6MwxesdkrP8p7bNgAHWk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; b=UP4LK8vdReLIFE6+Fe64Kq6i60m6WLAQfVn1lN2z3EWHRkxbjHhWdsY0nPa2pTlsQR sq+tzfZ5pmELl6/cC/+QQEbIxPwjI/VyfbF5cgvVdQzJppQFq+H9XAaSQU8Gf+nrg1vm SxanS3zQp2HTxATA3k4XRjpDzgWugArDI93dc= MIME-Version: 1.0 Received: by 10.213.110.206 with SMTP id o14mr43523ebp.6.1258074357092; Thu, 12 Nov 2009 17:05:57 -0800 (PST) In-Reply-To: <9bbcef730911121656x7615efcbu7dfb1ef060c2797c@mail.gmail.com> References: <11167f520911111050j36dd94far667c81e6f5c18e69@mail.gmail.com> <11167f520911121044l74744c30u5a4d9ca008ab863c@mail.gmail.com> <11167f520911121101o403751ddmb544dfaf1c61bf1e@mail.gmail.com> <9bbcef730911121328t342b2268oceba3712b52511d4@mail.gmail.com> <9bbcef730911121656x7615efcbu7dfb1ef060c2797c@mail.gmail.com> From: Scott Ullrich Date: Thu, 12 Nov 2009 20:05:37 -0500 Message-ID: To: Ivan Voras Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-current@freebsd.org Subject: Re: Help ZFS FreeBSD 8.0 RC2 Write performance issue X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Fri, 13 Nov 2009 01:05:58 -0000 On Thu, Nov 12, 2009 at 7:56 PM, Ivan Voras wrote: > 2009/11/13 Scott Ullrich : > I know it's a bit late now that you've settled on your equipment but > did you try discovering why you get performance so low you need SSDs > to cope? I think I've read somewhere that disabling ZIL should help > NFS performance - did you try it? I did try disabling ZIL and the performance was much better but I am overly cautious and would rather have it on. > Did you test your workload directly on the ZFS volume (without NFS) or with > another network file system like Samba? No, I was focused on NFS since this was originally a storage server for VMWare via NFS but since has been converted into a web server. Scott