Differences between revisions 15 and 27 (spanning 12 versions)
Revision 15 as of 2005-06-27 22:24:50
Size: 1105
Editor: yakko
Comment:
Revision 27 as of 2005-06-28 01:40:10
Size: 709
Editor: yakko
Comment:
Deletions are marked like this. Additions are marked like this.
Line 3: Line 3:
{{{#!latex2
$$Speedup = \frac{Performance~using~enhancement~when~possible}{Performance~without~enhancement}$$
}}}
[[latex2($$Speedup = \frac{Performance~using~enhancement~when~possible}{Performance~without~enhancement}$$)]]
Line 11: Line 9:
{{{#!latex2
$$SpeedupOverall = \frac{Old~Execution~Time}{New~Execution~Time}$$
}}}
[[latex2($$SpeedupOverall = \frac{Old~Execution~Time}{New~Execution~Time}$$)]] (1)
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{{{#!latex2
$$New~Exec~Time = Old~Exec~Time \left( 1 - FractionEnhanced + \frac{FractionEnhanced}{SpeedupEnhanced}\right)$$
}}}
This gives a new Execution time of
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{{{
or

                       Execution Time affected by Improvement
New Execution Time = -------------------------------------- + Execution Time unaffected
                            Amount of Improvement (x times)
[[latex2($$New~Exec~Time = Old~Exec~Time \left( 1 - FractionEnhanced + \frac{FractionEnhanced}{SpeedupEnhanced}\right)$$)]]
Line 27: Line 16:
                                     1
SpeedupOverall = --------------------------------------------
                                           FractionEnhanced
                 (1 - FractionEnhanced) + ------------------ )
                                           SpeedupEnhanced

}}}
[[latex2($$SpeedupOverall=\frac{1}{1-FractionEnhanced + \frac{FractionEnhanced}{SpeedupEnhanced}}$$)]]

AmdahlsLaw (last edited 2020-01-23 23:15:20 by scot)