1 CS533 Modeling and Performance Evaluation of Network and Computer Systems Group Work.

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Presentation transcript:

1 CS533 Modeling and Performance Evaluation of Network and Computer Systems Group Work

2 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)

3 Indices of Central Tendency and Dispersion CPU times (in ms) for 11 workloads 0.74, 0.43, 0.24, 2.24, , 8960, 4720, 19740, 7360, 22440, –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? (Jain, , )

4 Clustering (1 of 2) Program NameFunctionCPU I/O TKBLinker MACAssembler13253 COBOLCompiler827 BASICCompiler627 PascalCompiler612 EDTEditor491 SOSEditor133 (Jain, 6.2, p.91)

5 Clustering (2 of 2) Program NameFunctionCPU I/O TKBLinker11 MACAssembler COBOLCompiler BASICCompiler PascalCompiler EDTEditor SOSEditor (Normalized, no outliers)

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

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

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

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

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

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

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

13 Sample Bad Graph (1 of 3) (Mark Bertolina)

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

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

16 Minard's depiction of the fate of Napoleon's army (Eric Tsung) Sample Good Graph (1 of 3)

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

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

19 Lie factor of 14.8, 783%/53% Now the ugly! (Eric Tsung)

20 (Lie factor of 2.8, Area is what we see.) (Eric Tsung)

21 (Stretched axis) (Eric Tsung)

22 Bad Graph (Edwin Mercado)

23 (Edwin Mercado)

24 (Edwin Mercado)

25 (Edwin Mercado)

26 (Glenn McGuire) HINT Results - INT

27 HINT Results - FLOAT (Glenn McGuire)

28 HINT - Platforms Tested Mac –HINT exec. from executables/serial/G3/hint_bin.sea.1.1.hqx/Hint_PPC_Double/Integer –OS X version , OS 9.3 Emulation –PowerPC G4, 700 MHz, 512 MB Memory Linux –Compiled from source/serial/unix –Linux Redhat 9.0, cc –Intel Pentium 4, 1.8 GHz, 256 MB Memory, 256k L2 Cache (Eric Tsung)

29 (Eric Tsung)

30 Quips vs. Time Graphs (Eric Tsung)

31 Quips vs. Time Graph (Yatin Manjrekar)