From owner-freebsd-stable@FreeBSD.ORG Thu Nov 29 18:32:23 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 572E216A419 for ; Thu, 29 Nov 2007 18:32:23 +0000 (UTC) (envelope-from max@love2party.net) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.183]) by mx1.freebsd.org (Postfix) with ESMTP id E4EB913C457 for ; Thu, 29 Nov 2007 18:32:22 +0000 (UTC) (envelope-from max@love2party.net) Received: from amd64.laiers.local (dslb-088-066-016-068.pools.arcor-ip.net [88.66.16.68]) by mrelayeu.kundenserver.de (node=mrelayeu5) with ESMTP (Nemesis) id 0ML25U-1IxoBK095Y-0000oC; Thu, 29 Nov 2007 19:32:14 +0100 From: Max Laier Organization: FreeBSD To: freebsd-stable@freebsd.org Date: Thu, 29 Nov 2007 19:31:58 +0100 User-Agent: KMail/1.9.7 References: In-Reply-To: X-Face: ,,8R(x[kmU]tKN@>gtH1yQE4aslGdu+2]; R]*pL,U>^H?)gW@49@wdJ`H<=?utf-8?q?=25=7D*=5FBD=0A=09U=5For=3D=5CmOZf764=26nYj=3DJYbR1PW0ud?=>|!~,,CPC.1-D$FG@0h3#'5"k{V]a~.<=?utf-8?q?mZ=7D44=23Se=7Em=0A=09Fe=7E=5C=5DX5B=5D=5Fxj?=(ykz9QKMw_l0C2AQ]}Ym8)fU MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2208875.pVoCQ49vJz"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200711291932.05614.max@love2party.net> X-Provags-ID: V01U2FsdGVkX1/kfy26c4zoojrIRlrYKxCW8dIL87w0Uh2eZb3 WLO2zsITJCRG4vJyUpycLsWH4Fbi4uiVbqJwFSKfaNfMxaaLLK sIh5pvzaP7YoBkz0JAEjPG7Cubao8rba0U+Su+GgaM= Cc: Pete French Subject: Re: Also seeing 2 x quad-core system slower that 2 x dual core X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 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, 29 Nov 2007 18:32:23 -0000 --nextPart2208875.pVoCQ49vJz Content-Type: text/plain; charset="iso-8859-6" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thursday 29 November 2007, Pete French wrote: > I think I also just came up against the same effect that the original > poster saw. I have two sets of machines here - one is a pair of dual > core Xeons, the other a pair of quad core Xeons. They are HP servers, > more or less identical apart from the processors I belive. > > Both have 7.0-BETA3 installed, and the same config on them with the > same files. I am trying to delete a gigabyte of files using 'rm -rf' > > On the dual core processors this takes about 20 seconds. On the quad > cores it takes about 3 minutes! This is true for both the 32 and 64 bit > versions of FreeBSD :-( Can you provide more details on this task? It seems like something that=20 could easily be reproduced in a lab environment and serve as a regression=20 test and baseline for future improvements. Is the server doing any other=20 work while doing the rm, or is this it? What kind of directory layout=20 are we looking at? How many files, directories, users ...? What type of=20 filesystem, options, size? BTW, what's your nsswitch.conf like? If you don't need nis, removing it=20 can mean a considerable speed improvement - or try nscd(8). =2D-=20 /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News --nextPart2208875.pVoCQ49vJz Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQBHTwWlXyyEoT62BG0RAlDCAJ9jlko6Lz/lUFMBXH23JO8zu/LyDgCeODDT 4DK7lVa0Qe3y59FgHRGaZ/A= =OaRh -----END PGP SIGNATURE----- --nextPart2208875.pVoCQ49vJz--