Date: Sat, 13 May 2000 14:18:37 +0100 From: "Simon Clayton" <Simon@reftech.co.uk> To: "Mike Smith" <msmith@freebsd.org>, "Mitch Vincent" <mitch@venux.net> Cc: "Chris Phillips" <chris@selkie.org>, <freebsd-questions@freebsd.org> Subject: RE: FreeBSD SMP Message-ID: <NDBBLKPMFKLGKCALEBKAAEGACNAA.Simon@RefTech.co.uk> In-Reply-To: <200005112333.QAA01911@mass.cdrom.com>
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Mike, You said Buy something smaller. Benchmark your application, and determine what your performance requirements are. Make appropriate purchasing decisions based on quantifiable results. Can you give me any pointers on how to go about this. I have a web site that we are currently building using FreeBSD4.0/Apache1.3.12/PHP3.0.16/MySQL3.22.32 and have some very large database tables/joins etc. At the moment we just use the very very sophisticated tuning method of "allocating bigger buffers until it runs faster" and any information on a more scientific approach would be greatly appreciated. I know that ps -ax will show me how much processor time the process has used but how do I know how much/how effeciently it is using memory etc. Regards Simon -----Original Message----- From: owner-freebsd-questions@FreeBSD.ORG [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Mike Smith Sent: 12 May 2000 00:33 To: Mitch Vincent Cc: Chris Phillips; freebsd-questions@FreeBSD.ORG Subject: Re: FreeBSD SMP > Oh, one more thing.. > > Why would I need XEON processors? The only differenced between those and > other PIII's is the full speed cache (and more of it usually), right? You can't run more than two PII or PIII processors in a system. > *shrug* not really sure. The motherboards say they support PIII/XEON, so I > was wondering what your logic was behind what you said. "PIII/Xeon" means "Pentium-III Xeon processor", not "PIII or Xeon processors". > As far as the database using all 4 processors, any threaded program *could* > use them, couldn't they? Not unless it's designed to do so. I don't believe that Postgres is/does. > *shrug* I'm a total newbie with multi-processor systems, I've never had > anything big enough to need one so some of what I said could be totaly > wrong.. Please, feel free to school me :-) Buy something smaller. Benchmark your application, and determine what your performance requirements are. Make appropriate purchasing decisions based on quantifiable results. -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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