[kqr2]

Also recommend Jeff Dean's tech talk Building Software Systems At Google and Lessons Learned which references those latency numbers.

Slides: http://research.google.com/people/jeff/Stanford-DL-Nov-2010....

Video: http://www.youtube.com/watch?v=modXC5IWTJI

Also, a previous thread on latency numbers:

http://news.ycombinator.com/item?id=4047623

[colin_scott]

Yuppers, idea taken directly from Jeff's talk: http://colin-scott.github.com/blog/2012/12/24/latency-trends...