Date: Thu, 14 Mar 1996 20:57:39 -0800 From: "Russell L. Carter" <rcarter@geli.com> To: Aled Morris <aledm@routers.co.uk> Cc: hackers@freebsd.org (Hackers; FreeBSD) Subject: Re: Pentium Pro m/b bug question Message-ID: <199603150457.UAA29244@geli.clusternet> In-Reply-To: Your message of "Thu, 14 Mar 1996 15:40:30 GMT." <199603141649.QAA18159@deputy.pavilion.co.uk>
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> > Unrelated question: can someone explain in simple terms why I shouldn't > go out and buy a Pentium Pro system? I understand from this list that > there is some kind of motherboard bug which causes performance problems. > What should I ask my vendor? I was looking at a GW2K system, being > a satisifed previous customer. > Unless your vendor has implemented the fix described in http://pentium.intel.com/procs/support/ppro/82450.htm you will see the following performance ratios for a P6-200 vs. a P5-166 with PB-SRAM: P6/P5 (better than 1.0 expected) Single Narrow-SCSI disk throughput 0.57 DRAM bandwidth 0.73 Single 100BASE-TX NIC throughput 0.44 CPU (ops/sec, all in cache) 3.50 <--- most benchmarks measure this. Good luck, Russell > Aled > -- > telephone +44 973 207987 >
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