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Zbyszko Papierski - Communication patterns in carbon-based networks
- 1. confidential Communication patterns in carbon-based networks Zbyszko Papierski
- 2. confidential Heard this one before?
- 6. We need to communicate better!!!!!!
- 7. We need to communicate better!!!!!!
- 8. Communication is terrible. - Jeff Bezos (the famous one)
- 10. Count the white team passes
- 15. Color of the curtain change?
- 18. PSAService WeatherService - How’s the temperature? 30 [°C] - - What’s the wind speed? 30 [km/h] - - When’s the time of the next update? 1534593633000 -
- 19. Wear warm clothes! !!!Hurricane warning!!!! Next update in the year 50599... Effect?
- 20. PSAService WeatherService - How’s the temperature? 30 [°C] - understood 30°F - What’s the wind speed? 30 [km/h] - understood 30mph - When’s the time of the next update? 1534593633000 - understood May 3rd, 50599
- 23. Large house, with green garden and pleasant neighbourhood
- 29. Scalability
- 35. Locality
- 36. Organizations which design systems ... are constrained to produce designs which are copies of the communication structures of these organizations. - Melvin Conway
- 37. Organizations which design systems ... are constrained to produce designs which are copies of the communication structures of these organizations. - Melvin Conway 1968
- 41. Suspend process A Store process A CPU state Restore process B CPU state Unsuspend process B
- 42. Suspend task A Store task A work state Restore task B work state Unsuspend task B
- 43. Suspend task A Store task A work state Restore task B work state Unsuspend task B
- 44. Suspend task A Store task A work state Restore task B work state Unsuspend task B
- 45. Suspend task A Store task A work state Restore task B work state Unsuspend task B
- 46. Suspend task A Store task A work state Restore task B work state Unsuspend task B
- 48. Mean time to end task: 5.25h Mean time to end task: 13.5h Task A (1h) Task B (1h) Context switch (0.5h)
- 49. De p v Sha w W
- 53. a = 1 b = 1 c = a Lock read I/O Unlock read c Context switch on contention read/write cache flush Happens before for other locking threads
- 54. Work on A Work on B,interrupted Meeting start requires update on A context switch Work on A Meeting end Work on B context switch
- 55. Alternatives?
- 58. Create a tracking page
- 59. Create a tracking page Define the roles
- 61. Create a tracking page Define the roles Define a plan
- 62. Create a tracking page Define the roles Define a plan Involve the team
- 63. Create a tracking page Define the roles Define a plan Involve the team Meet
- 72. Three bets of memory access See also: https://mechanical-sympathy.blogspot.com/2012/08/memory-access-patterns-are-important.html Temporal Spatial Striding
- 73. Temporal Prioritize visibility of frequently accessed information
- 74. Spatial Organize data thematically and/or based interest groups
- 75. Spatial We are hardwired for narratives rather than bullet points
- 76. Striding Invest UX designer time to organize and present the data
- 77. Redundancy
- 78. 1A A A A 1B B B B 1C C C C C
- 82. The purpose of a good architecture is to defer decisions, delay decisions - Uncle Bob
- 83. confidential People are not robots
- 84. Human beings are social creatures - not occasionally or by accident but always. Sociability is one of our lives as both cause and effect. - Clay Shirky
- 87. confidential The ACTUAL software architecture
- 93. confidential ???