From owner-freebsd-stable@freebsd.org Thu Nov 26 10:19:08 2015 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 49431A3903A for ; Thu, 26 Nov 2015 10:19:08 +0000 (UTC) (envelope-from kraduk@gmail.com) Received: from mail-wm0-x235.google.com (mail-wm0-x235.google.com [IPv6:2a00:1450:400c:c09::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D39031C53 for ; Thu, 26 Nov 2015 10:19:07 +0000 (UTC) (envelope-from kraduk@gmail.com) Received: by wmww144 with SMTP id w144so15161477wmw.1 for ; Thu, 26 Nov 2015 02:19:06 -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=3Hn8oso+QxGrLJ9S3ZjGEMs2lcxFeMwIJycPYjfTGe0=; b=tlATbuZQEbBG08Wb/sB7qM+srtivRdI6puu3nxhGGwsLWwiXPmZEZVhpNb4YMwSVS3 QSVhT7aKSjGMjeMXQjn4i2X9f02PTyAaEHcGK9rlZ63Z/EBhkh/LeyzaiXM2xm9Kgs5X fN+NAGuJ6Y2YIX+o0s+Fvy8uIWbhVzuqr/Rq8dx7T4wyGt5eJTy8PhRqsAaOYlENTDXX YHObgEN4p9Be+tAMYDhFvTzbcwIiL+KRubqJdUYIAx9fA7XUL36XolmgUtrBVfRUF3jC EWCumieXERGJsfOhxH/+LXgjJg9c3HsYtGiOhIJdssgMR/Ef6SHDDn1OL5djrxJH2bF/ YihA== MIME-Version: 1.0 X-Received: by 10.194.95.202 with SMTP id dm10mr48676804wjb.56.1448533145935; Thu, 26 Nov 2015 02:19:05 -0800 (PST) Received: by 10.28.181.213 with HTTP; Thu, 26 Nov 2015 02:19:05 -0800 (PST) In-Reply-To: <20151125131614.349faf4e6febeb00e401364d@aei.mpg.de> References: <5654855F.2070502@sentex.net> <20151125081210.6ce3d9404b314fcfb31b061f@aei.mpg.de> <20151125131614.349faf4e6febeb00e401364d@aei.mpg.de> Date: Thu, 26 Nov 2015 10:19:05 +0000 Message-ID: Subject: Re: ZFS - poor performance with "large" directories From: krad To: =?UTF-8?B?R2Vycml0IEvDvGhu?= Cc: freebsd-stable Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Nov 2015 10:19:08 -0000 true, but in my experience usb pen drives are variable in terms of performance across different sticks and different areas of the same stick. This can complicate things a little, and is often not worth the effort. You obviously run the ssd over usb though, and I still do on one server I run as I haven't been able to sort the down time yet. On 25 November 2015 at 12:16, Gerrit K=C3=BChn wr= ote: > On Wed, 25 Nov 2015 12:06:38 +0000 krad wrote about Re= : > ZFS - poor performance with "large" directories: > > K> consumer SSDs are cheap enough now not to bother with usb drives I wou= ld > K> imagine. > > Sure. I was just suggesting a USB drive as a quick way to check if this > might help at all. Most people have USB drives lying around, and they can > simply be plugged into any computer. A SSD (cheap or not) more likely > needs to be bought first, and the server box might need to be opened to > have it installed. > > > cu > Gerrit >