Date: Fri, 6 May 2005 11:43:54 -0700 From: Brooks Davis <brooks@one-eyed-alien.net> To: Kris Kennaway <kris@obsecurity.org> Cc: current@freebsd.org Subject: Re: Benchmarking mpsafevfs with parallel tarball extraction Message-ID: <20050506184354.GA12366@odin.ac.hmc.edu> In-Reply-To: <20050506183529.GA46411@xor.obsecurity.org> References: <20050506183529.GA46411@xor.obsecurity.org>
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--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--
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