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MEMORY PERFORMANCE CHARACTERIZATION

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Apr 2000

This document presents and compares the bandwidth between processor and memory measured in different system architectures and chipsets. The results have been obtained by the use of memperf; it captures two aspects of the memory hierarchy, its behavior with temporal locality by varying the working set size and the spatial locality by varying the access pattern (in our case we work with strides). The calculated value is the transfer bandwidth (for a large amount of data). Furthermore memperf achieves SMP memory performance characterization.

1. Tests definition

2. Results

2.1 Architectures comparison
2.2 Pentium II - 350Mhz ; chipset 440BX
2.3 Pentium III - 550Mhz ; chipset 440BX
2.4 Pentium III Xeon - 550 Mhz ; (IBM netinfinity 5500)
2.5 Pentium III - 533 Mhz ; chipset 820
2.6 Pentium III - 667 Mhz ; chipset 820
2.7 Pentium III - 667 Mhz ; chipset 840 ; SDRAM
2.8 Pentium III - 933 Mhz ; chipset 840 ; RDRAM
2.9 Silicon Graphics Origin 2000 - R1000
2.10 Silicon Graphics Origin 2000 - R12000
2.11 IBM - POWER2SC - 133 Mhz

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