|
Size: 1157
Comment:
|
Size: 1382
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 22: | Line 22: |
| or Execution Time affected by Improvement New Execution Time = -------------------------------------- + Execution Time unaffected Amount of Improvement (x times) |
Back to ComputerTerms
Performance for entire task using the enhancement when possible
Speedup = -----------------------------------------------------------------
Performance for entire taks without using the enhancementSee 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:
Old Execution Time
SpeedupOverall = --------------------
New Execution Time
FractionEnhanced
New Execution Time = Old Execution Time ( (1 - FractionEnhanced) + ------------------ )
SpeedupEnhanced
or
Execution Time affected by Improvement
New Execution Time = -------------------------------------- + Execution Time unaffected
Amount of Improvement (x times)
So we have
1
SpeedupOverall = --------------------------------------------
FractionEnhanced
(1 - FractionEnhanced) + ------------------ )
SpeedupEnhancedBack to ComputerTerms
