Differences between revisions 13 and 26 (spanning 13 versions)
Revision 13 as of 2005-06-27 22:22:36
Size: 1467
Editor: yakko
Comment:
Revision 26 as of 2005-06-28 01:39:51
Size: 702
Editor: yakko
Comment:
Deletions are marked like this. Additions are marked like this.
Line 3: Line 3:
{{{#!latex2
\begin{equation} \label{eq:speedup}
   
Speedup = \frac{Performance~using~enhancement~when~possible}{Performance~without~enhancement}
\end{equation}
}}}
[[latex2($$Speedup = \frac{Performance~using~enhancement~when~possible}{Performance~without~enhancement}$$)]]
Line 13: Line 9:
{{{#!latex2
\begin{equation}
   SpeedupOverall = \frac{Old~Execution~Time}{New~Execution~Time}
\end{equation}
\begin{equation}
   New~Exec~Time = Old~Exec~Time \left( 1 - FractionEnhanced + \frac{FractionEnhanced}{SpeedupEnhanced}\right)
\end{equation}
}}}
[[latex2($$SpeedupOverall = \frac{Old~Execution~Time}{New~Execution~Time}$$)]]
Line 22: Line 11:
{{{

                                                                    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)
This gives a new Execution time of [[latex2($$New~Exec~Time = Old~Exec~Time \left( 1 - FractionEnhanced + \frac{FractionEnhanced}{SpeedupEnhanced}\right)$$)]]
Line 35: Line 14:
                                     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)