Date: Wed, 31 May 2006 14:22:13 +0200 (CEST) From: Wojciech Puchar <wojtek@tensor.3miasto.net> To: Ewald Jenisch <a@jenisch.at> Cc: freebsd-questions@freebsd.org Subject: Re: Selecting CPU/architecture for new system? Message-ID: <20060531141838.T91987@chylonia.3miasto.net> In-Reply-To: <20060531093224.GA2508@aurora.oekb.co.at> References: <20060531093224.GA2508@aurora.oekb.co.at>
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> > I'm currently in the process of selecting hardware for a FreeBSD > system having the main task of collecting network statistics via MRTG > or RRDtool. In addition the machine in question should be used to > collect netflow statistics plus providing a web-interface for > displaying them. > > To give you an impression about the workload to be expected: Currently > the system is a dual Xeon machine with 3GHz-CPUs reaching work loads > (top) of 7 to 9. Disk-IO btw is not the problem. > > > For the new system I thought about a 4-CPU machine, 4GB RAM - with > either 32- or 64-bit architecture. definitely Opteron based. this are really FAST, including really fast memory bandwidth, not only CPU. at least - lowest end Athlon64 machines are comparable in speed with high end P4 :) FreeBSD works fine on Athlon64/Opteron machines. not tested (by me) on multiprocessor ones, but it should be not a problem. > o) Should I stick with a 32-bit architecture (i386) or go for any of > the 64-architectures? go to Opteron 64-bit architecture. > o) Is FreeBSD 6.1 considered equally stable under the i386 > architecture as under any of the 64bit architectures? > not tested by me. but simply test it before buying. > o) Are SMP-systems with 4 CPUs supported in i386? > yes. > o) Are SMP-systems with 4 CPU supported in any of the 64-bit > architectures? yes. > > o) Anything else to consider in this context? try to optimize software you use first :) only if it's impossible buy new machine.
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