Differences between revisions 4 and 27 (spanning 23 versions)
Revision 4 as of 2004-01-25 18:27:41
Size: 1157
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:
{{{
           Performance for entire task using the enhancement when possible
Speedup = -----------------------------------------------------------------
              Performance for entire taks without using the enhancement
}}}
[[latex2($$Speedup = \frac{Performance~using~enhancement~when~possible}{Performance~without~enhancement}$$)]]
Line 13: Line 9:
{{{
                  Old Execution Time
SpeedupOverall = --------------------
                  New Execution Time
[[latex2($$SpeedupOverall = \frac{Old~Execution~Time}{New~Execution~Time}$$)]] (1)
Line 18: Line 11:
                                                                    FractionEnhanced
New Execution Time = Old Execution Time ( (1 - FractionEnhanced) + ------------------ )
                                                                    SpeedupEnhanced
This gives a new Execution time of

[[latex2($$New~Exec~Time = Old~Exec~Time \left( 1 - FractionEnhanced + \frac{FractionEnhanced}{SpeedupEnhanced}\right)$$)]]
Line 23: 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)