ralphw@ius3.ius.cs.cmu.edu (Ralph Hyre) (05/16/89)
I'm evaluating platforms for our vision work, which can be characterized as memory bandwidth intensive. A pointer to a document sustained and burst for various transfer sizes (up to 1Meg/xfer) would be ideal. Are there any benchmarks out there that try to measure various dimensions of memory bandwidth? (DMA vs. CPU block moves, bcopy times, time to xfer a 1M file from disk out through the ethernet.) Currently leaning toward Sparcstation 1 because we have a chance to add framegrabbers to it and DMA is well-supported. Only moderately disappointed that FP performance isn't better (why wasn't the TI 8847 FP chip used? Cost, I presume.) Somewhat concered about the smaller cache size (64K vs. 128K for DEC) Will DEC have an R3000 box before Sun gets the Sparcstation 2 out the door? -- - Ralph W. Hyre, Jr. Internet: ralphw@{ius{3,2,1}.,}cs.cmu.edu Phone:(412) CMU-BUGS Amateur Packet Radio: N3FGW@W2XO, or c/o W3VC, CMU Radio Club, Pittsburgh, PA "You can do what you want with my computer, but leave me alone!8-)" --