Date: Wed, 9 Jun 1999 10:45:04 -0400 From: Christopher Michaels <ChrisMic@clientlogic.com> To: rezidew@rezidew.net Cc: freebsd-questions@FreeBSD.ORG Subject: RE: Cyrix, AMD, Intel Message-ID: <6C37EE640B78D2118D2F00A0C90FCB4401105970@site2s1>
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I can try and field a couple of these... > -----Original Message----- > From: Crist J. Clark [SMTP:cjc@cc942873-a.ewndsr1.nj.home.com] > Sent: Tuesday, June 08, 1999 8:00 PM > To: rezidew@rezidew.net > Cc: freebsd-questions@FreeBSD.ORG > Subject: Re: Cyrix, AMD, Intel > > Hi, "Graphic," I do not have your answers, but this question is much > more appropriate in freebsd-questions@freebsd.org. I'm bouncing it > over there. > > Hope someone can help you. > > rezidew@rezidew.net wrote, > > I have just bought two (new?) machines. > > > > one is a AMD-K62 (350) > > the other is a Cyrix MII (366) > > > > I have several questions... > > > > #1) how should I compile my kernel 'i[3456]86'? > I know the AMD is 586. I'm not too sure about the Cyrix MII > > > > #2) when I boot up the AMD with freebsd it's > > detected as a 586 running at some where around > > 356.22MHz. Why only 586? > Because the AMD K6 series uses a Pentium command set. It does not use the pentium pro command set. > > > > #3) when I boot up the Cyrix with OpenBSD it's > > detected as a 686 running at 251.36Mhz. > > should I expect the same with FreeBSD? why > > does this happen? is there something wrong > > with the processor? > > > As far as I know you should. If this is the case then you will probably want a 686 kernel for the Cyrix. Ok, I am guessing that you have the motherboard jumpered wrong. That should be reported at it's proper speed, otherwise the Cyrix is pulling that old game of rating the processor at one speed and running it at another. Personally, if I were you, I would triple-check that the processor is jumpered properly. > > #4) I have a Dual Processor Pentium-Pro-200. > > If I compile in SMP for that machine, > > on which of the three machines should I > > expect to see the best performance? (all > > things being equal) > > > It REALLY depends upon when you are doing with the machines, and what kind of hardware other than the processor is in them. All things equal I would I say the AMD, because it has sheer MHz over the PPro and a newer design, and because I've never seen a Cyrix that performed well. If you are running CPU intensive programs that have been optimized for multiple CPU's, that computer may have a slight speed benefit. (My K6-2/300 used to regularly outperform my roommate's PII/300. Now that I have a K6-3/400 there's no contest :) I will tell you now, that the deciding factor will most likely be the disk subsystem, not the CPU. > > Thanks in advance > > > Hope this helps... > > > > > > -- > > Graphic Rezidew > > Graphic@rezidew.net > > -- > Crist J. Clark cjclark@home.com > > -Chris To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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