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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Jim McMannis who wrote (56664)	4/28/1999 12:55:00 PM
From: RDM	Respond to of 1570343

Direct Rambus shows no gains over current memory technology theregister.co.uk A Performance Comparison of Contemporary DRAM Architectures Abstract In response to the growing gap between memory access time and processor speed, DRAM manufacturers have created several new DRAM architectures. This paper presents a simulation-based per-formance study of a representative group, each evaluated in a small system organization. These small-system organizations correspond to workstation-class computers and use on the order of 10 DRAM chips. The study covers Fast Page Mode, Extended Data Out, Syn-chronous, Enhanced Synchronous, Synchronous Link, Rambus, and Direct Rambus designs. Our simulations reveal several things: (a) current advanced DRAM technologies are attacking the memory bandwidth problem but not the latency problem; (b) bus transmis-sion speed will soon become a primary factor limiting memory-sys-tem performance; (c) the post-L2 address stream still contains significant locality, though it varies from application to application; and (d) as we move to wider buses, row access time becomes more prominent, making it important to investigate techniques to exploit the available locality to decrease access time.

To: Jim McMannis who wrote (56664)	4/28/1999 1:02:00 PM
From: Process Boy	Read Replies (2) \| Respond to of 1570343

Jim - " A sucker a day puts the P-III in play." As a certifiable intellabee, I don't personally care for you making fun of Intel's customers like this. But if it gets you through the day... PB

To: Jim McMannis who wrote (56664)	4/28/1999 9:12:00 PM
From: TGPTNDR	Read Replies (1) \| Respond to of 1570343

Jim, Re: < A sucker a day puts the P-III in play> I've got to agree with you. The company I work for just bought a batch of multiple cpu P-III boxes to run ORICAL web database functions, despite the fact that the Alpha machines will do the job better running NT. and the HP-UX and SUN machines will do the job better in the unix environment, and that the server environment has NOTHING to do with the application environment. They bought multiple 3-CPU boxes, - the second cpu adds about 25% thruput, and the third adds about 5%(as far as I can figure, Please correct me.) What do they think - that they are going to upgrade to the 4th CPU? DRIVES ME NUTS!! Or have I missed a benchmark around here somewhere? - I haven't been able to benchmark the Multiple cpu machines at work yet. tgptndr