Date: Fri, 6 Nov 1998 22:25:13 -0800 (PST) From: "Jason C. Wells" <jcwells@u.washington.edu> To: Morris Allen <mallen@vidnet.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: your mail Message-ID: <Pine.BSF.4.05.9811062221470.2105-100000@s8-37-26.student.washington.edu> In-Reply-To: <000c01be0a03$53f99dc0$c97391d0@moe-rc.vidnet.net>
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On Fri, 6 Nov 1998, Morris Allen wrote: >I am an old Multi Processor Bay Mainframer, but now a technical >engineer. My question. Say in Freebsd 3.0.. from a processor side.. >Would I get more performance out of using two 333 or 350 Mhz dual >processors on a dual processor motherboard or just jump to the 450 Mhz >Intel processor. I believe, at least from my old job, when processor >utilization time is at a peek, the dual would perform better, (More MIPS >or task) than the faster single processor. Please share you thoughts >with me. I am prepairing to build a monster mail machine.. with freebsd >3.0. thanks Morris Allen You would get more from the dual set up according to some graphics that are on our site somewhere. According to those numbers, the overhead for SMP is about 10 percent. Using cycles/sec as a _gross_ indicator you would get 700-70 Mhz worth of CPU in the dual cpu config. Catchya Later, | UW Mechanical Engineering Jason Wells | http://weber.u.washington.edu/~jcwells/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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