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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 }}} |
<<latex( |
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{{{ Old Execution Time SpeedupOverall = -------------------- New Execution Time |
<<latex( |
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FractionEnhanced New Execution Time = Old Execution Time ( (1 - FractionEnhanced) + ------------------ ) SpeedupEnhanced |
This gives a new Execution time of <<latex( |
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1 SpeedupOverall = -------------------------------------------- FractionEnhanced (1 - FractionEnhanced) + ------------------ ) SpeedupEnhanced |
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}}} | <<latex( |
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<<latex(
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:
<<latex(
This gives a new Execution time of
<<latex(
So we have
<<latex(
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