From owner-freebsd-current@FreeBSD.ORG Fri Jan 4 20:33:07 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id CBE53E79 for ; Fri, 4 Jan 2013 20:33:07 +0000 (UTC) (envelope-from yanegomi@gmail.com) Received: from mail-oa0-f43.google.com (mail-oa0-f43.google.com [209.85.219.43]) by mx1.freebsd.org (Postfix) with ESMTP id 9B8F07C3 for ; Fri, 4 Jan 2013 20:33:07 +0000 (UTC) Received: by mail-oa0-f43.google.com with SMTP id k1so15449785oag.30 for ; Fri, 04 Jan 2013 12:33:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=g7n/CA4IzpgCjADXEGpp0gh01WGPNUxTIn6hHBZIvQk=; b=lziXFr0ukSBwIHh4GuxYwIIFPQzQyDpxKMkFQNIsym4lmNH7I+46HK5bjUmEYhfs0Y 1E43bfkmBZDYkkw9Md18kmRYeYZqyIksAsFa2v4EQHFQ6kT51T3WzBhkA+RvnLnlS3LX SQ0ijelVw0D0JJSfRGrBOjVBbVr/LZ7I51zRgBEtZ5cd3LXf+62vPj+U7kOAhEb81u+O RJZ4Lzr1A1bO4W7F7+MaOLpmaBObBg5/R50Sss/Kp9I50/mCLsyL5tTA/aRYuOWE5qRI qVae8EVzAgGlQnnverF7pv00XwnWvCHeesN3n0QKBvfFhtfSFylpaHVnRFP/NTE3xflI VDLQ== MIME-Version: 1.0 Received: by 10.182.146.107 with SMTP id tb11mr39824235obb.30.1357331586682; Fri, 04 Jan 2013 12:33:06 -0800 (PST) Received: by 10.76.143.33 with HTTP; Fri, 4 Jan 2013 12:33:06 -0800 (PST) In-Reply-To: <20130104192816.560f5bf6@fabiankeil.de> References: <50E6DE91.7010404@zedat.fu-berlin.de> <1ADC2ECB-70FF-4DDD-9D62-16E2EEECDD8B@my.gd> <50E6F2FC.3060903@zedat.fu-berlin.de> <23BF8538-FB5A-4432-A4E1-721B5F566CA2@my.gd> <20130104192816.560f5bf6@fabiankeil.de> Date: Fri, 4 Jan 2013 12:33:06 -0800 Message-ID: Subject: Re: ZFS/RAIDZ and SAMBA: abyssimal performance From: Garrett Cooper To: Fabian Keil Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-current@freebsd.org 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: Fri, 04 Jan 2013 20:33:07 -0000 On Fri, Jan 4, 2013 at 10:28 AM, Fabian Keil wrote: ... > While I agree that the values are system dependant the purpose of > the tunables could still be documented together with a description > of how to properly test that they have any effect at all and that > it's an improvement compared to the defaults. > > Scarce ZFS tuning documentation is also a problem upstream which > probably doesn't help. The documentation is there (see the Evil ZFS Tuning Guide, etc), the problem is that our OS is Solaris so the directions do not directly apply. As for the Samba settings, there's already a document at samba.org that describes what needs to be done: http://www.samba.org/samba/docs/man/Samba-HOWTO-Collection/speed.html . My point is: the documentation is already there in both areas. One just has to read, tweak, and test. There isn't a magic formula or recipe for getting your box to go faster for all cases. Thanks, -Garrett