CS 533 Modeling and Performance Evaluation of Network

CS 533 Modeling and Performance Evaluation of Network and Computer Systems Group Work 1

Index of Central Tendency • • What Index of Central Tendency should be used to report? – – How would you summarize an average PC configuration? – – 2 Response time (symmetrical pdf) Number of packets per day (symmetrical pdf) Number of packets per second (skewed pdf) Frequency of keywords in a language CPU type Memory size Disk size Number of peripherals (Jain, 12. 8 and 12. 9)

Indices of Central Tendency and Dispersion • CPU times (in ms) for 11 workloads 0. 74, 0. 43, 0. 24, 262. 08, 8960, 4720, 19740, 7360, 22440, 28560 – What index of central tendency to use? – What index of dispersion to use? • Disk I/O’s 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? 3 (Jain, 12. 10+12. 13, 12. 11+12. 14)

Clustering (1 of 2) Program Name TKB MAC COBOL BASIC Pascal EDT SOS 4 Function CPU Linker 14 Assembler 13 Compiler 8 Compiler 6 Editor 4 Editor 1 (Jain, 6. 2, p. 91) I/O 2735 253 27 27 12 91 33

Clustering (2 of 2) Program Name TKB MAC COBOL BASIC Pascal EDT SOS Function CPU Linker 1 Assembler. 92 Compiler. 54 Compiler. 38 Editor. 23 Editor. 00 I/O 1. 09. 01. 00. 03. 01 (Normalized, no outliers) 5

Graphics Charts with Mistakes (1 of 7) 6 (Geoff Kuenning, 1998)

Graphics Charts with Mistakes (2 of 7) 7 (Geoff Kuenning, 1998)

Graphics Charts with Mistakes (3 of 7) 8 (Geoff Kuenning, 1998)

Graphics Charts with Mistakes (4 of 7) 9 (Geoff Kuenning, 1998)

Graphics Charts with Mistakes (5 of 7) 10 (Geoff Kuenning, 1998)

Graphics Charts with Mistakes (6 of 7) 11 (Geoff Kuenning, 1998)

Graphics Charts with Mistakes (7 of 7) Women in the Workforce 1960 12 1980 (Geoff Kuenning, 1998)

Sample Bad Graph (1 of 3) 13 (Mark Bertolina) http: //www 6. tomshardware. com/graphic/20031229/vga-charts-09. html

Sample Bad Graph (2 of 3) (Luba Sakharuk) 14

Sample Bad Graph (3 of 3) (Luba Sakharuk) 15

Sample Good Graph (1 of 3) Minard's depiction of the fate of Napoleon's army (Eric Tsung) 16 http: //ricardo. ecn. wfu. edu/SCS/Gallery/

Sample Good Graph (2 of 3) William Playfair’s (1759 -1823) Balance of Trade. 17 (Eric Tsung)

Sample Good Graph (3 of 3) 18 (Eric Tsung) Florence Nightingale's Coxcomb

Now the ugly! Lie factor of 14. 8, 783%/53% (Eric Tsung) 19 http: //www. math. yorku. ca/SCS/Gallery/lie-factor. html

(Lie factor of 2. 8, Area is what we see. ) 20 (Eric Tsung)

(Stretched axis) (Eric Tsung) 21

Bad Graph (Edwin Mercado) 22

(Edwin Mercado) 23 http: //www. bsos. umd. edu/hesp/newman/Newman_classes/Newman 724/graphing 6. pdf

(Edwin Mercado) 24

(Edwin Mercado) 25

HINT Results - INT (Glenn Mc. Guire) 26

HINT Results - FLOAT (Glenn Mc. Guire) 27

HINT - Platforms Tested • Mac – HINT exec. from executables/serial/G 3/hint_bin. sea. 1. 1. hqx/Hint_PPC_Double/Integer – OS X version 10. 2. 8, OS 9. 3 Emulation – Power. PC G 4, 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, 256 k L 2 Cache (Eric Tsung) 28

29 (Eric Tsung)

Quips vs. Time Graphs 30 (Eric Tsung)

Quips vs. Time Graph 31 (Yatin Manjrekar)