From : Kris Kielhofner <kris@wisvis.com> Sent : Friday, July 11, 2003 2:43 PM To : sv@phystech.com Subject : Ubench results ( Xeon hyperthreading vs. none) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, Here are my results from runnning ubench on one of our machines: CPU: 2x Intel Xeon 2.2ghz 512kb cache (/proc/cpuinfo) RAM: 2048mb Micron PC2100 Registered ECC DDR (512mb x4) Linux Kernel: 2.4.18-27.7.xsmp (updated from updates.redhat.com) Distro: Redhat 7.3 GCC: 2.96 (RedHat version) Custom-built. All tests were run in single user mode. Installed ubench with configure, make, make install. Nothing custom. Three tests were run in quick succession with a tight loop. Hyperthreading enabled in bios: Unix Benchmark Utility v.0.3 Copyright (C) July, 1999 PhysTech, Inc. Author: Sergei Viznyuk <sv@phystech.com> http://www.phystech.com/download/ubench.html Linux 2.4.18-27.7.xsmp #1 SMP Fri Mar 14 05:52:30 EST 2003 i686 Ubench CPU: 177833 Ubench MEM: 157239 - -------------------- Ubench AVG: 167536 Unix Benchmark Utility v.0.3 Copyright (C) July, 1999 PhysTech, Inc. Author: Sergei Viznyuk <sv@phystech.com> http://www.phystech.com/download/ubench.html Linux 2.4.18-27.7.xsmp #1 SMP Fri Mar 14 05:52:30 EST 2003 i686 Ubench CPU: 159983 Ubench MEM: 156010 - -------------------- Ubench AVG: 157996 Unix Benchmark Utility v.0.3 Copyright (C) July, 1999 PhysTech, Inc. Author: Sergei Viznyuk <sv@phystech.com> http://www.phystech.com/download/ubench.html Linux 2.4.18-27.7.xsmp #1 SMP Fri Mar 14 05:52:30 EST 2003 i686 Ubench CPU: 160515 Ubench MEM: 121861 - -------------------- Ubench AVG: 141188 Hyperthreading off: Unix Benchmark Utility v.0.3 Copyright (C) July, 1999 PhysTech, Inc. Author: Sergei Viznyuk <sv@phystech.com> http://www.phystech.com/download/ubench.html Linux 2.4.18-27.7.xsmp #1 SMP Fri Mar 14 05:52:30 EST 2003 i686 Ubench CPU: 140956 Ubench MEM: 156938 - -------------------- Ubench AVG: 148947 Unix Benchmark Utility v.0.3 Copyright (C) July, 1999 PhysTech, Inc. Author: Sergei Viznyuk <sv@phystech.com> http://www.phystech.com/download/ubench.html Linux 2.4.18-27.7.xsmp #1 SMP Fri Mar 14 05:52:30 EST 2003 i686 Ubench CPU: 140871 Ubench MEM: 156672 - -------------------- Ubench AVG: 148771 Unix Benchmark Utility v.0.3 Copyright (C) July, 1999 PhysTech, Inc. Author: Sergei Viznyuk <sv@phystech.com> http://www.phystech.com/download/ubench.html Linux 2.4.18-27.7.xsmp #1 SMP Fri Mar 14 05:52:30 EST 2003 i686 Ubench CPU: 141018 Ubench MEM: 156564 - -------------------- Ubench AVG: 148791 Some very interesting results. Hyperthreading-off seems to be more consistent, while hyperthreading-on had a signifigantly higher score on the first test. Odd. - -- Kris Kielhofner -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQE/DwVsWFdDzX2FjCgRAmBjAJ9oyeN1QbTvJwNDOJ6TRwv3LcBcPQCeL7BD TebP5qSq4f6H3Kt46Ou+h34= =dkuh -----END PGP SIGNATURE-----