[plt-scheme] V301.5 Speed Up

From: Anton van Straaten (anton at appsolutions.com)
Date: Sat Feb 11 13:02:02 EST 2006

Williams, M. Douglas wrote:
> run 0: cpu = 66796 real = 67176 gc = 47558
> run 1: cpu = 69060 real = 69400 gc = 49814
> run 2: cpu = -357483 real = 72535 gc = -376862
> run 3: cpu = 71313 real = 71733 gc = 52016
> run 4: cpu = 67597 real = 68128 gc = 48492
> run 5: cpu = 67447 real = 67727 gc = 48169
> run 6: cpu = 67086 real = 67367 gc = 47933
> run 7: cpu = 66987 real = 67647 gc = 47779
> run 8: cpu = -362611 real = 67217 gc = -381908
> run 9: cpu = 66425 real = 67036 gc = 47159
> CPU:   mean = -17738.3, variance = 32552157259.344448
> Real:  mean = 68596.6, variance = 3971085.6
> GC:    mean = -36985.00000000001, variance = 32569416745.555557
> 
> V301.5
> run 0: cpu = 15362 real = 15592 gc = 3453
> run 1: cpu = 15362 real = 15422 gc = 3476
> run 2: cpu = 15132 real = 15191 gc = 3245
> run 3: cpu = 14832 real = 14991 gc = 2905
> run 4: cpu = 15042 real = 15082 gc = 3025
> run 5: cpu = 14882 real = 14941 gc = 3025
> run 6: cpu = 14551 real = 14611 gc = 2704
> run 7: cpu = 14632 real = 14782 gc = 2744
> run 8: cpu = 14671 real = 14701 gc = 2764
> run 9: cpu = 14220 real = 14250 gc = 2343
> CPU:   mean = 14868.599999999999, variance = 133825.6
> Real:  mean = 14956.3, variance = 156329.34444444443
> GC:    mean = 2968.4, variance = 125844.04444444446
---snip---

But what does all this mean, pun intended?  I think it demonstrates why 
marketing was invented:

	"New DrScheme 301.5 - now double the speed!"

No-one ever created a stock bubble by examining the numbers too closely...

Anton


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