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97-0611 Modifications to the Latency Section of Performance Testing Baseline Text

97-0611 Modifications to the Latency Section of Performance Testing Baseline Text. Gojko Babic, Arjan Durresi, Raj Jain, Justin Dolske, The Ohio State University Contact: Jain@cse.ohio-state.edu http://www.cse.ohio-state.edu/~jain/. Overview. More precise measurement procedures

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97-0611 Modifications to the Latency Section of Performance Testing Baseline Text

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  1. 97-0611 Modifications to the Latency Section of Performance Testing Baseline Text Gojko Babic, Arjan Durresi, Raj Jain, Justin Dolske, The Ohio State University Contact: Jain@cse.ohio-state.edu http://www.cse.ohio-state.edu/~jain/

  2. Overview • More precise measurement procedures • Complete list and description of foreground and background traffic characteristics • Scalable test configurations • Reporting requirements

  3. Latency Measurement • Precise procedure description • Includes mean and standard deviations • Various intensities of foreground traffic (0+%, 50%, 75%, 87.5%, ...) • Various intensities of background traffic (0%, 50%, 75%, ... of max background load)

  4. Foreground Characteristics • Type of VCCs: PVP, SVP, PVC, SVC, • VCCs between ports on same/different modules/fabrics. “Same module” may or may not be better. • Service class: UBR, ABR • Arrival patterns: equally spaced frames, self-similar, random • Frame length: 64 B, 1518 B, 9188 B or 64 kB, variable; • Full foreground load (FFL) • Input rate/FFL = 0+, 0.5, 0.75, ... 1-2-k, k = 1, 2, ...

  5. Background Characteristics • Type of VCCs: PVP, SVP, PVC, SVC, • VCCs between ports on same/differentmodules/fabrics • Connection configuration: n-to-n straight, n-to-(n-1) full cross, n-to-m partial cross with m = 2, 3, 4, ...,n-1 • Service class: UBR, ABR, CBR, and VBR • Arrival patterns: equally spaced frames, self-similar, random • Frame length: 64 B, 1518 B, 9188 B or 64 kB, variable • Maximum background load (MBL) =  Link Rates • Input rate/MBL = 0, 0.5, 0.75, 0.875,... 1-2-k, k = 0, 1, 2, ...

  6. System under Test: ATM Switch P5Out A In P7 Out P5 In P7 In A Out P4Out P6Out P4 In P6 In ATM Monitor P1 Out P3Out P1 In P3 In P2Out P0 Out B In P2 In B Out P0 In Foreground traffic Background traffic Scaleable Test Configuration 7-to-7 Straight background VCs

  7. Motion • Adopt the text of 97-0611 to replace section 3.2 of Performance Testing Baseline Text.

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