炎炎夏日，為了達到節能減碳並降低電腦排放廢熱的目的，
對家裡的兩台主力機做了如下的降頻降壓設定；看看調整後的效能表現如何吧。
| Processor | Original V. | Original F. | Reduced V. | Reduced F. | |
|---|---|---|---|---|---|
| Server | Core 2 Quad Q6600 | 1.25 V | o.c. 3.0 GHz | 1.00 V | 1.2 GHz |
| Desktop | Core i7 920 | 1.15 V | o.c. 3.6 GHz | 0.85 V | 1.6 GHZ |
Server:
venus [/home/kmd] -kmd- [W0] sync;ubench;sleep 1;ubench -s;sleep 323223 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 FreeBSD 7.3-STABLE FreeBSD 7.3-STABLE #1 r209653: Sat Jul 3 16:20:05 CST 2010 root@venus.kmd.twbbs.org:/usr/obj/usr/src/sys/VENUS i386 Ubench CPU: 297229 Ubench MEM: 103491 -------------------- Ubench AVG: 200360 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 FreeBSD 7.3-STABLE FreeBSD 7.3-STABLE #1 r209653: Sat Jul 3 16:20:05 CST 2010 root@venus.kmd.twbbs.org:/usr/obj/usr/src/sys/VENUS i386 Ubench Single CPU: 99804 (0.37s) Ubench Single MEM: 57459 (0.40s) ----------------------------------- Ubench Single AVG: 78631
沒啥意義的 Desktop:
Host OS
-
CPU: Intel Core i7 920 @ 1.6 GHz
Memory: 12 GB DDR3-1333 RAM in triple channel mode
OS: Windows 7 Ultimate x64
Virtualization: VMware Workstation 7.1
Guest OS
-
CPU: 1 package, 4 cores
Memory: 4200 MB
OS: FreeBSD 8.1-PREREELEASE amd64
freebsd# sync;ubench;sleep 1;sync;ubench -s 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 FreeBSD 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #0 r209653: Sat Jul 3 18:55:08 CST 2010 kmd@freebsd.kmd.twbbs.org:/usr/obj/usr/src/sys/GENERIC amd64 Ubench CPU: 762347 Ubench MEM: 29739 -------------------- Ubench AVG: 396043 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 FreeBSD 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #0 r209653: Sat Jul 3 18:55:08 CST 2010 kmd@freebsd.kmd.twbbs.org:/usr/obj/usr/src/sys/GENERIC amd64 Ubench Single CPU: 204184 (0.40s) Ubench MEM: 0 ----------------------------------- Ubench Single AVG: 102092