From owner-freebsd-performance@FreeBSD.ORG Wed Dec 26 00:47:26 2007 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0F63116A421 for ; Wed, 26 Dec 2007 00:47:26 +0000 (UTC) (envelope-from biancalana@gmail.com) Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.183]) by mx1.freebsd.org (Postfix) with ESMTP id ADF5713C469 for ; Wed, 26 Dec 2007 00:47:25 +0000 (UTC) (envelope-from biancalana@gmail.com) Received: by py-out-1112.google.com with SMTP id u77so4110961pyb.3 for ; Tue, 25 Dec 2007 16:47:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=VdJ/Dj63At+wYijzZ0lovvtqcKm3C4vv+6CGubJL87Q=; b=UZ4b4kFcF2/PKPN0aVMWVFewoT0ghX17MlGwzOcLPYRFYHWC7iIGbOxg4GHslQX9fiZYZ6YAa2a5Z7sQ3M6nU+Qas4y7kW0t9kOtU8eiGmUpVqx+ab5+oFgYiyc/oUAyZnLuA8oq/5idHvtIsu+2tAjk4vbat71cJn5mJmHBxBk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=djeny/r2mRrvhhhP+Ujrf6wJ3NvXqA2+qhWmmN1XGQSeKdR5MPAQJbsFxQSvrWhW3Ke6kDgIUcoin+f4NMxxaWlJE2VQzv7BFh1OBsXnx5nQ9OkpcSeZXNdDyG66FzD5uiQzrQjgOBpvwznhSdlJxPpU6m685pWwCvijvqCrTQU= Received: by 10.65.252.13 with SMTP id e13mr11386973qbs.84.1198630044965; Tue, 25 Dec 2007 16:47:24 -0800 (PST) Received: by 10.64.184.9 with HTTP; Tue, 25 Dec 2007 16:47:24 -0800 (PST) Message-ID: <8e10486b0712251647uddf80f9sa6cacb42dfa94ff5@mail.gmail.com> Date: Tue, 25 Dec 2007 21:47:24 -0300 From: "Alexandre Biancalana" To: "Alfred Perlstein" In-Reply-To: <20071222002535.GL16982@elvis.mu.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <8e10486b0712191109n3d21b02cyf5183ee0cd01d8ce@mail.gmail.com> <20071221201625.GZ16982@elvis.mu.org> <8e10486b0712211249v4c5571ddud21b277f686992b2@mail.gmail.com> <20071221212808.GE16982@elvis.mu.org> <8e10486b0712211555n3efe8729qff14387be128cf10@mail.gmail.com> <20071222002535.GL16982@elvis.mu.org> Cc: freebsd-performance@freebsd.org Subject: Re: Bad performance when accessing a lot of small files X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Dec 2007 00:47:26 -0000 On 12/21/07, Alfred Perlstein wrote: > Have you tried the 'noatime' mount option? That should help. Yeah, the zfs set atime=off was already done.... > > Can you provide a histogram of the count of files per directory? Excuse-me, but I don't understand....