From owner-freebsd-performance@FreeBSD.ORG Fri Dec 28 17:03:58 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 E929A16A420 for ; Fri, 28 Dec 2007 17:03:58 +0000 (UTC) (envelope-from biancalana@gmail.com) Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.179]) by mx1.freebsd.org (Postfix) with ESMTP id 77B0013C506 for ; Fri, 28 Dec 2007 17:03:58 +0000 (UTC) (envelope-from biancalana@gmail.com) Received: by py-out-1112.google.com with SMTP id u77so6573091pyb.3 for ; Fri, 28 Dec 2007 09:03:51 -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=JKBuR5af+Ztj2dxsLD1BzBb5C7Hd2ImHBubhEdiRgaM=; b=aU+THgSG+PUX13v6sHuKpv+km8OXCiUEubyVvG3v63d0Am4SOprDwRfPuJRAc5OendGJvjqdjgrMmAMEmxJ+gxScnk25cBP1MQCmYBmlcfhmJWErac3PYeS3MKQF1VYPThgVSKZGdAd6d099lmyXW5WIiFZab02On7Vwo/Nm/ck= 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=OBCVNfP3ccKXr80kTZ0Phd6YFswxIYRuOULyuhMotfwA2YQJVoVefWE3MjwHjmky6479GrPQVm+3V1RnLY+S4Gyfcj9vdjfYSq6q/0HQE4D0OASnAk6YBuBqaf2ZZqIUt+20dTlW6MILVg9clDT6gv3aL19ScTUAnxND1eHc/y0= Received: by 10.64.150.18 with SMTP id x18mr18364553qbd.0.1198861431128; Fri, 28 Dec 2007 09:03:51 -0800 (PST) Received: by 10.64.184.9 with HTTP; Fri, 28 Dec 2007 09:03:50 -0800 (PST) Message-ID: <8e10486b0712280903n431dd608nfb9e2fdf5f79d623@mail.gmail.com> Date: Fri, 28 Dec 2007 15:03:50 -0200 From: "Alexandre Biancalana" To: "Alfred Perlstein" In-Reply-To: <8e10486b0712251647uddf80f9sa6cacb42dfa94ff5@mail.gmail.com> 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> <8e10486b0712251647uddf80f9sa6cacb42dfa94ff5@mail.gmail.com> 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: Fri, 28 Dec 2007 17:03:59 -0000 On 12/25/07, Alexandre Biancalana wrote: > 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.... > Can you explain better ?