2011 夏日省電大作戰

本站的伺服器自 2006 年採用 Intel Q6600 至今已屆五年,
雖然近來無恙但考慮到器材老舊與廢熱排放,
索性趁著記憶體價格崩盤及溽暑來臨之前物色新的硬體平台,
並試圖打造峰值耗電小於 150w 的節能伺服器。

以下為 Intel Pentium G620 的 ubench 設定參數與測試結果,
去年的結果有過之而無不及,
新一代低階雙核效能居然能與舊款中高階四核比肩,不禁讓人讚嘆時代的進步。 😀

Processor Original V. Original F. Reduced V. Reduced F.
Server Pentium G620 auto 2.6 GHz auto 1.6 GHz


1.6 GHz (downclocked)

test [/home/kmd] -kmd- [W0] sync;ubench;sync;sleep 1;ubench -s;sleep 65536
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 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17 02:41:51 UTC 2011     root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
Ubench CPU:   424815
Ubench MEM:   196044
--------------------
Ubench AVG:   310429
Unix Benchmark Utility v.0.3
Copyright (C) July, 1999 PhysTech, Inc.
Author: Sergei Viznyuk </sv><sv @phystech.com>
http://www.phystech.com/download/ubench.html
FreeBSD 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17 02:41:51 UTC 2011     root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
Ubench Single CPU:   214072 (0.40s)
Ubench Single MEM:   105781 (0.40s)
-----------------------------------
Ubench Single AVG:   159926

2.6 GHz (original)


Unix Benchmark Utility v.0.3
Copyright (C) July, 1999 PhysTech, Inc.
Author: Sergei Viznyuk </sv><sv @phystech.com>
http://www.phystech.com/download/ubench.html
FreeBSD 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17 02:41:51 UTC 2011     root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
Ubench CPU:   682552
Ubench MEM:   300412
--------------------
Ubench AVG:   491482
Unix Benchmark Utility v.0.3
Copyright (C) July, 1999 PhysTech, Inc.
Author: Sergei Viznyuk </sv><sv @phystech.com>
http://www.phystech.com/download/ubench.html
FreeBSD 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17 02:41:51 UTC 2011     root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
Ubench Single CPU:   340793 (0.39s)
Ubench Single MEM:   166295 (0.40s)
-----------------------------------
Ubench Single AVG:   253544

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