CS533 Modeling and Performance Evaluation of Network and Computer Systems

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CS533Modeling and Performance Evaluation of
Network and Computer Systems

• Group Work

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Index of Central Tendency

• What Index of Central Tendency should be used to
  report?
• Response time (symmetrical pdf)
• Number of packets per day (symmetrical pdf)
• Number of packets per second (skewed pdf)
• Frequency of keywords in a language
• How would you summarize an average PC
  configuration?
• CPU type
• Memory size
• Disk size
• Number of peripherals

(Jain, 12.8 and 12.9)
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Indices of Central Tendency and Dispersion

• CPU times (in ms) for 11 workloads
• 0.74, 0.43, 0.24, 2.24, 262.08, 8960, 4720,
  19740, 7360, 22440, 28560
• What index of central tendency to use?
• What index of dispersion to use?
• Disk I/Os
• 22, 33, 14, 15, 42, 28, 33, 45, 23, 34, 39, 21,
  36, 23, 34, 36, 25, 9, 11, 19, 35, 26, 16, 23,
  34, 24, 38, 15, 13, 35, 28
• What index of central tendency to use?
• What index of dispersion to use?

(Jain, 12.1012.13, 12.1112.14)
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Clustering (1 of 2)

• Program Name Function CPU I/O
• TKB Linker 14 2735
• MAC Assembler 13 253
• COBOL Compiler 8 27
• BASIC Compiler 6 27
• Pascal Compiler 6 12
• EDT Editor 4 91
• SOS Editor 1 33

(Jain, 6.2, p.91)
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Clustering (2 of 2)

• Program Name Function CPU I/O
• TKB Linker 1 1
• MAC Assembler .92 .09
• COBOL Compiler .54 .01
• BASIC Compiler .38 .01
• Pascal Compiler .38 .00
• EDT Editor .23 .03
• SOS Editor .00 .01
• (Normalized, no outliers)

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Graphics Charts with Mistakes (1 of 7)
(Geoff Kuenning, 1998)
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Graphics Charts with Mistakes (2 of 7)
(Geoff Kuenning, 1998)
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Graphics Charts with Mistakes (3 of 7)
(Geoff Kuenning, 1998)
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Graphics Charts with Mistakes (4 of 7)
(Geoff Kuenning, 1998)
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Graphics Charts with Mistakes (5 of 7)
(Geoff Kuenning, 1998)
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Graphics Charts with Mistakes (6 of 7)
(Geoff Kuenning, 1998)
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Graphics Charts with Mistakes (7 of 7)
Women in the Workforce
(Geoff Kuenning, 1998)
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Sample Bad Graph (1 of 3)
(Mark Bertolina)
http//www6.tomshardware.com/graphic/20031229/vga-
charts-09.html
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Sample Bad Graph (2 of 3)
(Luba Sakharuk)
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Sample Bad Graph (3 of 3)
(Luba Sakharuk)
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Sample Good Graph (1 of 3)
Minard's depiction of the fate of Napoleon's army
(Eric Tsung)
http//ricardo.ecn.wfu.edu/SCS/Gallery/
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Sample Good Graph (2 of 3)
William Playfairs (1759-1823) Balance of Trade.
(Eric Tsung)
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Sample Good Graph (3 of 3)
(Eric Tsung)
Florence Nightingale's Coxcomb
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Now the ugly!
Lie factor of 14.8, 783/53
(Eric Tsung)
http//www.math.yorku.ca/SCS/Gallery/lie-factor.ht
ml
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(Lie factor of 2.8, Area is what we see.)
(Eric Tsung)
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(Stretched axis)
(Eric Tsung)
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Bad Graph
(Edwin Mercado)
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(Edwin Mercado)
http//www.bsos.umd.edu/hesp/newman/Newman_classes
/Newman724/graphing6.pdf
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(Edwin Mercado)
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(Edwin Mercado)
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HINT Results - INT
(Glenn McGuire)
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HINT Results - FLOAT
(Glenn McGuire)
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HINT - Platforms Tested

• Mac
• HINT exec. from executables/serial/G3/hint_bin.sea
  .1.1.hqx/Hint_PPC_Double/Integer
• OS X version 10.2.8, OS 9.3 Emulation
• PowerPC G4, 700 MHz, 512 MB Memory
• Linux
• Compiled from source/serial/unix
• Linux Redhat 9.0, cc 3.2.2
• Intel Pentium 4, 1.8 GHz, 256 MB Memory, 256k L2
  Cache

(Eric Tsung)
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(Eric Tsung)
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Quips vs. Time Graphs
(Eric Tsung)
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Quips vs. Time Graph
(Yatin Manjrekar)