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Date:      Tue, 24 May 2005 12:37:08 -0700
From:      Kris Kennaway <kris@obsecurity.org>
To:        Bohdan Horst <nexus@hoth.amu.edu.pl>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Performance of 4.x vs 5.x (nbench results)
Message-ID:  <20050524193707.GA11906@xor.obsecurity.org>
In-Reply-To: <20050524193117.GA35326@aristo>
References:  <20050524193117.GA35326@aristo>

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On Tue, May 24, 2005 at 09:31:17PM +0200, Bohdan Horst wrote:
>=20
>=20
> I have 4 identical PC with FreeBSD (2x4.11R and 2x5.4R)
>=20
> Results (/usr/ports/net/benchmarks/nbench):
>=20
> (CPUTYPE=3Dp3 in /etc/make.conf; portupgrade -vf nbench)
>=20
> tests:
> NUMERIC SORT:  4.11=3D 499.52 494.31  5.4=3D 451.26 449.7  (4.11 faster)=
=20
> STRING SORT:   4.11=3D 24.13  24.11   5.4=3D 25.286 25.294 (5.4  faster)
> BITFIELD(e+8)  4.11=3D 1.133  1.1319  5.4=3D 1.1239 1.1239 (4.11 faster)
> FP EMULATION   4.11=3D 18.951 18.755  5.4=3D 25.044 25.029 (5.4  faster)
> FOURIER        4.11=3D 5361   5356.3  5.4=3D 5076.3 5076.3 (4.11 faster)
> ASSIGNMENT     4.11=3D 5.4795 5.4469  5.4=3D 5.8986 5.8968 (5.4  faster)
> IDEA           4.11=3D 595.23 592.13  5.4=3D 660.65 660.65 (5.4  faster)
> HUFFMAN        4.11=3D 332.47 330.91  5.4=3D 409.06 408.95 (5.4  faster)
> NEURAL NET     4.11=3D 7.0374 6.9882  5.4=3D 7.2976 7.2955 (5.4  faster)
> LU DECOMP.     4.11=3D 225.94 226.76  5.4=3D 211.56 210.84 (4.11 faster)
> original:
> INTEGER INDEX  4.11=3D 12.305 12.238  5.4=3D 13.409 13.400 (5.4  faster)
> FLOATING-POINT 4.11=3D 9.309  9.296   5.4=3D 9.052  9.041  (4.11 faster)
> new:
> MEMORY INDEX   4.11=3D 3.321  3.313   5.4=3D 3.448  3.448  (5.4  faster)
> INTEGER INDEX  4.11=3D 2.895  2.873   5.4=3D 3.271  3.268  (5.4  faster)
> FLOATING-POINT 4.11=3D 5.163  5.156   5.4=3D 5.020  5.014  (4.11 faster)
>=20
>=20
>=20
> all 4 hosts have important services (w3cache, firewall, ircd, etc) and i
> cannot turn them off to perform good UFS1/UFS2 tests :(

Thanks, but if the machines are not completely idle then it's
impossible to tell whether these numbers are meaningful :-(

Kris

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