jm + jeff-dean   3

Allen curve - Wikipedia
During the late 1970s, [Professor Thomas J.] Allen undertook a project to determine how the distance between engineers’ offices affects the frequency of technical communication between them. The result of that research, produced what is now known as the Allen Curve, revealed that there is a strong negative correlation between physical distance and the frequency of communication between work stations. The finding also revealed the critical distance of 50 meters for weekly technical communication.

With the fast advancement of internet and sharp drop of telecommunication cost, some wonder the observation of Allen Curve in today's corporate environment. In his recently co-authored book, Allen examined this question and the same still holds true. He says[2]

"For example, rather than finding that the probability of telephone communication increases with distance, as face-to-face probability decays, our data show a decay in the use of all communication media with distance (following a "near-field" rise)." [p. 58]

Apparently a few years back in Google, some staff mined the promotion data, and were able to show a Allen-like curve that proved a strong correlation between distance from Jeff Dean's desk, and time to getting promoted.
jeff-dean  google  history  allen-curve  work  communication  distance  offices  workplace  teleworking  remote-work 
5 weeks ago by jm
Jeff Dean - Taming Latency Variability and Scaling Deep Learning [talk]
'what Jeff Dean and team have been up to at Google'. Reducing request latency in a network SOA architecture using backup requests, etc., via Ilya Grigorik
youtube  talks  google  low-latency  soa  architecture  distcomp  jeff-dean  networking 
november 2013 by jm
Jeff Dean's list of "Numbers Everyone Should Know"
from a 2007 Google all-hands, the list of typical latency timings from ranging from an L1 cache reference (0.5 nanoseconds) to a CA->NL->CA IP round trip (150 milliseconds).
performance  latencies  google  jeff-dean  timing  caches  speed  network  zippy  disks  via:kellabyte 
march 2013 by jm

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