The Author Online Book Forums are Moving

The Author Online Book Forums will soon redirect to Manning's liveBook and liveVideo. All book forum content will migrate to liveBook's discussion forum and all video forum content will migrate to liveVideo. Log in to liveBook or liveVideo with your Manning credentials to join the discussion!

Thank you for your engagement in the AoF over the years! We look forward to offering you a more enhanced forum experience.

wayne@stidolph.com (6) [Avatar] Offline
#1
Amdahl's law is important as part of the community lore, but it's not what actually happens - as you add more processors, the speedup doesn't stay constant as the graph shows, but rather the speedup diminishes (due to coherency-maintenance costs), which Amdahl ignored (not all that much multi-processor impact in those days!) So, you might want to introduce Gunther's Universal Scalability Model - see "Guerrilla Capacity Planning" section 4.4
roland.kuhn (39) [Avatar] Offline
#2
Re: Sec 1.5.2 'Utilization' needs broader discussion
You are right, we should treat this more correctly. Rather than deepening its treatment in chapter one, I will lower the level of detail there and include the full information in chapter two’s discussion of the topic; chapter one is an overall introduction after all.

Thanks for bringing this up!