Every application must have an inherent amount of irreducible complexity.
The only question is who will have to deal with it.
-- Tesler's Law
A 1% serial program (99% parallel) can never be sped up by more than 100×,
no matter how many processors are used.
This interactive graphical worksheet illustrates how
Amdahl's Law, Little's Law, and hardware limitations
interact to create a theoretical upper limits on the
potential performance gain from tuning and/or parallelizing
COMING SOON: Cache and Memory Bandwidth of 16 Core Systems