HP Visualize J282 HP Visualize B1000, C3000, J5000 Workstation Memory Subsyste
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- HP Visualize J282 | HP Visualize B1000, C3000, J5000 Workstation Memory Subsyste - Page 1
VISUALIZE Workstation Memory Subsystem By Kirsten Olsen HP Workstation System Lab - HP Visualize J282 | HP Visualize B1000, C3000, J5000 Workstation Memory Subsyste - Page 2
in memory intensive applications over the HP PA-8200-based (C200, C240, J282, J2240) family of workstations. This paper will explain some of the key elements that contribute to the memory performance improvements in the HP VISUALIZE UNIX® Workstations. It will also compare the architecture - HP Visualize J282 | HP Visualize B1000, C3000, J5000 Workstation Memory Subsyste - Page 3
access time of the page in the first bank. This feature of SDRAMs contributes to improved busy system memory latency. Memory in the HP VISUALIZE UNIX® Workstations uses varying SDRAM densities- 64Mb, 128Mb and, in the future, 256Mb- to provide customers with a range of memory DIMM sizes. 08/23/99 - HP Visualize J282 | HP Visualize B1000, C3000, J5000 Workstation Memory Subsyste - Page 4
an open or closed page. If two reads are waiting to be issued, the first to a closed page and the second to an open page, HP VISUALIZE UNIX® Workstation systems will reorder the reads to allow the read to the open page to execute first, or to be issued "out of order." The - HP Visualize J282 | HP Visualize B1000, C3000, J5000 Workstation Memory Subsyste - Page 5
Application Performance Data Below you will find performance charts comparing HP VISUALIZE UNIX® Workstation systems to HP PA-8200 systems and to Sun's Ultrasparc60 systems. Performance gains in both EDA and MDA applications are shown. In the EDA applications, Verilog and QuickHDL - HP Visualize J282 | HP Visualize B1000, C3000, J5000 Workstation Memory Subsyste - Page 6
C3000 Performance (Larger numbers are better) EDA Applications 2.50x 2.00x Sun U60/360 C360 C3000 1.50x 1.00x 0.50x 0.00x Verilog Design Compiler Cyclone QuickHDL Calibre EDA Composite 08/23/99 HP VISUALIZE WORKSTATIONS 5 - HP Visualize J282 | HP Visualize B1000, C3000, J5000 Workstation Memory Subsyste - Page 7
MCA D Composite Summary It is exciting to look at the application performance numbers and see the great results of the improved HP VISUALIZE UNIX® Workstation memory architecture. The improved application performance results are the direct result of a total 2X performance improvement plan based on
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VISUALIZE Workstation Memory Subsystem
By Kirsten Olsen
HP Workstation System Lab