Date: Mon, 28 Aug 2000 19:53:16 -0500 (CDT) From: Mike Meyer <mwm@mired.org> To: kstewart@urx.com Cc: Marc van Woerkom <marc.vanwoerkom@science-factory.com>, questions@FreeBSD.ORG Subject: Re: FreeBSD is being extremely slow.. Message-ID: <14763.2428.985901.162062@guru.mired.org> In-Reply-To: <39AAE9EC.DFD5E4E@urx.com> References: <14762.54705.346152.495600@guru.mired.org> <39AAE9EC.DFD5E4E@urx.com>
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Kent Stewart writes: > Mike Meyer wrote: > > Marc van Woerkom writes: > > > > I refuse to support overclocking, please fix your system and > > > > then repost if you continue to have problems. > > > A wise decision. > > > I was once tempted to overclock a P166 to 180 or somethig MHz. > > > There were several weird errors due to overclocking that did never > > > show up under W95 but only under FreeBSD at that time. > > What's really wierd is that overclockers seldom go to even as much as > > 10% more CPU. For anything but very long-running cpu-bound tasks > > that's not enough to be noticeable! > That isn't true. You go from a FSB of 66 to 100 and clock for clock > that is a 1.5x gain. I've never heard of anyone doing that one before(*). The ones I see are more like the one here (166 -> 180), which is less than 9%. However, what I normally see are CPU speeds, which might be a different ball of wax. If you go from 66 to 100 FSB with 4x cpu multiplier and a 366MHz CPU, then the *CPU* clocked at 400MHz, which is right at 10%. I'm not into this stuff. The damn things are flaky enough without going out of my way to make them worse. <mike *) The exceptions are the guys doing liquid-cooled systems, and getting 2 or 3x. On the other hand, they admit they're doing it for hack value, and are spending more on the system than it would have cost to buy a system running at the resulting speed. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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