Differences between revisions 1 and 32 (spanning 31 versions)
Revision 1 as of 2004-01-25 18:20:24
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Editor: yakko
Comment:
Revision 32 as of 2020-01-23 23:15:20
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Editor: 68
Comment:
Deletions are marked like this. Additions are marked like this.
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{{{
           Performance for entire task using the enhancement when possible
Speedup = -----------------------------------------------------------------
              Performance for entire taks without using the enhancement
}}}
Speedup=Performance using enhancement when possiblePerformance without enhancement
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Notice that we are talking about the entire task here and that performance (speedup) is defined in terms of execution time! So we have to define the following:

SpeedupOverall=Old Execution TimeNew Execution Time

This gives a new Execution time of

New Exec Time=Old Exec Time(1FractionEnhanced+FractionEnhancedSpeedupEnhanced)

So we have

SpeedupOverall=(11FractionEnhanced+FractionEnhancedSpeedupEnhanced)

Back to ComputerTerms

Speedup=Performance using enhancement when possiblePerformance without enhancement

See SpeedUp

Notice that we are talking about the entire task here and that performance (speedup) is defined in terms of execution time! So we have to define the following:

SpeedupOverall=Old Execution TimeNew Execution Time

This gives a new Execution time of

New Exec Time=Old Exec Time(1FractionEnhanced+FractionEnhancedSpeedupEnhanced)

So we have

SpeedupOverall=(11FractionEnhanced+FractionEnhancedSpeedupEnhanced)

Back to ComputerTerms

AmdahlsLaw (last edited 2020-01-23 23:15:20 by 68)