Editing Speedup (section)

===Speedup in latency===
Speedup in ''latency'' is defined by the following formula:<ref>{{cite book
| last1 = Hennessy
| first1 = John L.
| last2 = David A.
| first2 = Patterson
| title = Computer Architecture: A Quantitive Approach
| url = https://archive.org/details/computerarchitec00henn_754
| url-access = limited
| location = Waltham, MA
| publisher = [[Morgan Kaufmann]]
| pages = [https://archive.org/details/computerarchitec00henn_754/page/n71 46]–47
| date = 2012
| isbn = 978-0-12-383872-8
}}</ref>
: <math>S_\text{latency} = \frac{L_1}{L_2} = \frac{T_1W_2}{T_2W_1},</math>
where
* ''S''<sub>latency</sub> is the speedup in latency of the architecture 2 with respect to the architecture 1;
* ''L''<sub>1</sub> is the latency of the architecture 1;
* ''L''<sub>2</sub> is the latency of the architecture 2.

Speedup in latency can be predicted from [[Amdahl's law]] or [[Gustafson's law]].