From owner-freebsd-current@FreeBSD.ORG Fri May 6 18:43:55 2005 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AE14016A4D4; Fri, 6 May 2005 18:43:55 +0000 (GMT) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 686B043D6A; Fri, 6 May 2005 18:43:55 +0000 (GMT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.13.0/8.13.0) with ESMTP id j46IhsxQ012893; Fri, 6 May 2005 11:43:54 -0700 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.13.0/8.13.0/Submit) id j46Ihs8P012892; Fri, 6 May 2005 11:43:54 -0700 Date: Fri, 6 May 2005 11:43:54 -0700 From: Brooks Davis To: Kris Kennaway Message-ID: <20050506184354.GA12366@odin.ac.hmc.edu> References: <20050506183529.GA46411@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="rwEMma7ioTxnRzrJ" Content-Disposition: inline In-Reply-To: <20050506183529.GA46411@xor.obsecurity.org> User-Agent: Mutt/1.4.1i X-Virus-Scanned: by amavisd-new X-Spam-Status: No, hits=0.0 required=8.0 tests=none autolearn=no version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on odin.ac.hmc.edu cc: smp@freebsd.org cc: current@freebsd.org Subject: Re: Benchmarking mpsafevfs with parallel tarball extraction X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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, 06 May 2005 18:43:55 -0000 --rwEMma7ioTxnRzrJ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, May 06, 2005 at 11:35:29AM -0700, Kris Kennaway wrote: > Here are my benchmark numbers for parallel tarball extraction > with/without mpsafevfs on a 12-processor E4500 running up-to-date 6.0. > Kernel was built without INVARIANTS and other debugging options, > without ADAPTIVE_GIANT (which causes about a 200% performance penalty > on system time in my testing, and has marginal impact on real or user > time) and with 4BSD scheduler (ULE causes spontaneous reboots on this > machine). The e4500 uses the esp SCSI controller, which runs > without Giant. Excellect writeup! Thanks for doing this. Many thanks to Jeff! Some of my users will certaintly thank you when we upgrade our cluster to 6.x. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --rwEMma7ioTxnRzrJ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFCe7rqXY6L6fI4GtQRAjz0AKCtPu0OHvjI2ks84Evlwex9DbQEIgCfSuGm hIDMcQwa4THTlEJM8ug+9HI= =3uEM -----END PGP SIGNATURE----- --rwEMma7ioTxnRzrJ--